number : Idioms & Phrases

• noun an identification number consisting of a two-part code assigned to banks and savings associations; the first part shows the location and the second identifies the bank itself
  BIN; ABA transit number.
  

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• etc. See under Abstract, Abundant, etc.

Webster 1913

• (Math.), numbers used without application to things, as 6, 8, 10; but when applied to any thing, as 6 feet, 10 men, they become concrete.

Webster 1913

• (Math.), a number, the sum of whose aliquot parts exceeds the number itself. Thus, 1, 2, 3, 4, 6, the aliquot parts of 12, make the number 16. This is opposed to a deficient number, as 14, whose aliquot parts are 1, 2, 7, the sum of which is 10; and to a perfect number, which is equal to the sum of its aliquot parts, as 6, whose aliquot parts are 1, 2., 3.

Webster 1913

• noun root of an algebraic equation with rational coefficients
  

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• (Math.), two numbers, each of which is equal to the sum of all the aliquot parts of the other.

Webster 1913

• the number 666, mentioned in Rev. xiii. 18. It has been variously interpreted.

Webster 1913

• (Math.), one which applied to some concrete case.

Webster 1913

• (Math.), the difference between that number and the next higher power of 10; as, 4 is the complement of 6, and 16 of 84.

Webster 1913

• logarithms.

Webster 1913

• . See under Sexagesimal.

Webster 1913

• noun the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element
  

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• noun a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
  H; hydrogen.
  

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• noun a colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts
  neon; Ne.
  

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• noun a radioactive transuranic metallic element produced by bombarding plutonium with neutrons
  fermium; Fm.
  

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• noun a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium but Mv was formerly the symbol)
  Md; mendelevium; Mv.
  

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• noun a radioactive transuranic element synthesized by bombarding curium with carbon ions; 7 isotopes are known
  nobelium; No.
  

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• noun a radioactive transuranic element synthesized from californium
  lawrencium; Lr.
  

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• noun a radioactive transuranic element which has been synthesized
  rutherfordium; unnilquadium; Unq; element 104; Rf.
  

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• noun a transuranic element
  hahnium; element 105; Db; dubnium.
  

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• noun a transuranic element
  element 106; Sg; seaborgium.
  

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• noun a transuranic element
  element 107; Bh; bohrium.
  

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• noun a radioactive transuranic element
  Hs; hassium; element 108.
  

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• noun a radioactive transuranic element
  meitnerium; element 109; Mt.
  

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• noun a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
  Na; sodium.
  

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• noun a radioactive transuranic element
  darmstadtium; element 110; Ds.
  

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• noun a radioactive transuranic element
  roentgenium; Rg; element 111.
  

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• noun a radioactive transuranic element
  ununbium; element 112; Uub.
  

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• noun a radioactive transuranic element
  Uut; ununtrium; element 113.
  

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• noun a radioactive transuranic element
  element 114; Uuq; ununquadium.
  

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• noun a radioactive transuranic element
  ununpentium; Uup; element 115.
  

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• noun a radioactive transuranic element
  ununhexium; element 116; Uuh.
  

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• noun a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
  Mg; magnesium.
  

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• noun a silvery ductile metallic element found primarily in bauxite
  aluminium; Al; aluminum.
  

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• noun a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
  silicon; Si.
  

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• noun a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms
  P; phosphorus.
  

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• noun an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)
  sulfur; S; sulphur.
  

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• noun a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
  chlorine; Cl.
  

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• noun a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
  argon; Ar.
  

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• noun a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
  potassium; K.
  

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• noun a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
  helium; He.
  

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• noun a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
  calcium; Ca.
  

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• noun a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite
  scandium; Sc.
  

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• noun a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
  titanium; Ti.
  

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• noun a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite
  V; vanadium.
  

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• noun a hard brittle multivalent metallic element; resistant to corrosion and tarnishing
  Cr; chromium.
  

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• noun a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals
  Mn; manganese.
  

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• noun a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood
  Fe; iron.
  

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• noun a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
  Co; cobalt.
  

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• noun a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite
  Ni; nickel.
  

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• noun a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
  copper; Cu.
  

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• noun a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
  lithium; Li.
  

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• noun a bluish-white lustrous metallic element; brittle at ordinary temperatures but malleable when heated; used in a wide variety of alloys and in galvanizing iron; it occurs naturally as zinc sulphide in zinc blende
  Zn; zinc.
  

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• noun a rare silvery (usually trivalent) metallic element; brittle at low temperatures but liquid above room temperature; occurs in trace amounts in bauxite and zinc ores
  gallium; Ga.
  

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• noun a brittle grey crystalline element that is a semiconducting metalloid (resembling silicon) used in transistors; occurs in germanite and argyrodite
  germanium; Ge.
  

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• noun a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
  arsenic; As.
  

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• noun a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)
  selenium; Se.
  

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• noun a nonmetallic heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water
  bromine; Br.
  

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• noun a colorless element that is one of the six inert gasses; occurs in trace amounts in air
  krypton; Kr.
  

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• noun a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite
  rubidium; Rb.
  

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• noun a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
  strontium; Sr.
  

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• noun a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys
  Y; yttrium.
  

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• noun a light strong brittle grey toxic bivalent metallic element
  Be; glucinium; beryllium.
  

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• noun a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon
  zirconium; Zr.
  

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• noun a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium
  niobium; Nb.
  

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• noun a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel
  Mo; molybdenum.
  

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• noun a crystalline metallic element not found in nature; occurs as one of the fission products of uranium
  Tc; technetium.
  

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• noun a rare polyvalent metallic element of the platinum group; it is found associated with platinum
  ruthenium; Ru.
  

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• noun a white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum
  Rh; rhodium.
  

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• noun a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry
  palladium; Pd.
  

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• noun a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography
  silver; Ag.
  

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• noun a soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores
  cadmium; Cd.
  

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• noun a rare soft silvery metallic element; occurs in small quantities in sphalerite
  indium; In.
  

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• noun a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
  B; boron.
  

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• noun a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide
  tin; Sn.
  

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• noun a metallic element having four allotropic forms; used in a wide variety of alloys; found in stibnite
  Sb; antimony.
  

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• noun a brittle silver-white metalloid element that is related to selenium and sulfur; it is used in alloys and as a semiconductor; occurs mainly as tellurides in ores of copper and nickel and silver and gold
  Te; tellurium.
  

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• noun a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks)
  iodin; I; iodine.
  

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• noun a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts
  Xe; xenon.
  

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• noun a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
  cesium; Cs; caesium.
  

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• noun a soft silvery metallic element of the alkali earth group; found in barite
  barium; Ba.
  

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• noun a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
  La; lanthanum.
  

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• noun a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group
  Ce; cerium.
  

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• noun a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
  Pr; praseodymium.
  

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• noun an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
  carbon; C.
  

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• noun a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
  Nd; neodymium.
  

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• noun a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium
  promethium; Pm.
  

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• noun a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite
  Sm; samarium.
  

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• noun a bivalent and trivalent metallic element of the rare earth group
  Eu; europium.
  

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• noun a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group
  Gd; gadolinium.
  

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• noun a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
  terbium; Tb.
  

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• noun a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic
  dysprosium; Dy.
  

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• noun a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds
  Ho; holmium.
  

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• noun a trivalent metallic element of the rare earth group; occurs with yttrium
  erbium; Er.
  

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• noun a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime
  thulium; Tm.
  

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• noun a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
  nitrogen; N.
  

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• noun a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime
  Yb; ytterbium.
  

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• noun a trivalent metallic element of the rare earth group; usually occurs in association with yttrium
  Lu; lutecium; lutetium.
  

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• noun a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons
  hafnium; Hf.
  

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• noun a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
  tantalum; Ta.
  

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• noun a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite
  tungsten; W; wolfram.
  

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• noun a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
  Re; rhenium.
  

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• noun a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
  osmium; Os.
  

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• noun a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
  iridium; Ir.
  

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• noun a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits
  platinum; Pt.
  

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• noun a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia
  Au; gold.
  

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• noun a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
  O; oxygen.
  

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• noun a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures
  mercury; quicksilver; Hg; hydrargyrum.
  

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• noun a soft grey malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores
  thallium; Tl.
  

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• noun a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey
  Pb; lead.
  
  • the children were playing with lead soldiers

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• noun a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals
  bismuth; Bi.
  

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• noun a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor
  polonium; Po.
  

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• noun a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
  At; astatine.
  

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• noun a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health
  Rn; radon.
  

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• noun a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
  Fr; francium.
  

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• noun an intensely radioactive metallic element that occurs in minute amounts in uranium ores
  radium; Ra.
  

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• noun a radioactive element of the actinide series; found in uranium ores
  Ac; actinium.
  

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• noun a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
  fluorine; F.
  

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• noun a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
  thorium; Th.
  

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• noun a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
  protoactinium; protactinium; Pa.
  

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• noun a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
  U; uranium.
  

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• noun a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium
  Np; neptunium.
  

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• noun a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239
  plutonium; Pu.
  

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• noun a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms
  Am; americium.
  

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• noun a radioactive transuranic metallic element; produced by bombarding plutonium with helium nuclei
  Cm; curium.
  

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• noun a radioactive transuranic element; discovered by bombarding americium with helium
  berkelium; Bk.
  

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• noun a radioactive transuranic element; discovered by bombarding curium with alpha particles
  californium; Cf.
  

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• noun a radioactive transuranic element produced by bombarding plutonium with neutrons
  E; einsteinium; Es.
  

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• noun the number of molecules in a mole of a substance (approximately 602,250,000,000,000,000,000,000)
  Avogadro number.
  

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• noun the number of molecules in a mole of a substance (approximately 602,250,000,000,000,000,000,000)
  Avogadro number.
  

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• noun someone who is no longer popular
  has-been.
  

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• noun an identification number consisting of a two-part code assigned to banks and savings associations; the first part shows the location and the second identifies the bank itself
  BIN; ABA transit number.
  

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• noun a number equal to the difference between the number of baryons and the number of antibaryons in any subatomic structure; it is conserved in all types of particle interactions
  

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• noun a positional system of numeration that uses binary digits and a radix of two
  binary system; binary numeration system; pure binary numeration system.
  

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• the square root of the square root of that number. Thus the square root of 81 is 9, and the square root of 9 is 3, which is the biquadratic root of 81. Hutton.

Webster 1913

• noun the fourth book of the Old Testament; contains a record of the number of Israelites who followed Moses out of Egypt
  Numbers.
  

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• noun the number of a letter box at the post office where mail is collected
  PO Box No; PO box number; box number.
  
• noun a mailing address to which answers to a newspaper ad can be sent
  

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• noun measure of the hardness of a material
  

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• a fraction.

Webster 1913

• noun a mark consisting of characters written on a book; used to indicate shelf location
  call mark; pressmark.
  

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• noun the number of elements in a mathematical set; denotes a quantity but not the order
  cardinal number; cardinal.
  

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• noun the number of elements in a mathematical set; denotes a quantity but not the order
  cardinal number; cardinal.
  

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• the numbers one, two, three, etc., in distinction from first, second, third, etc., which are called ordinal numbers.

Webster 1913

• (Arith.), those whose powers terminate in the same digits as the roots themselves; as 5 and 6, whose squares are 25 and 36. Bailey. Barlow.

Webster 1913

• (Math.), those that can be exactly expressed by some common unit; thus a foot and yard are commensurable, since both can be expressed in terms of an inch, one being 12 inches, the other 36 inches.

Webster 1913

• noun (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1
  imaginary; complex number; complex quantity.
  

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• (Math.), in the theory of numbers, an expression of the form a + b&root;-1, when a and b are ordinary integers.

Webster 1913

• noun an integer that is divisible without remainder by at least one positive integer other than itself and one
  

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• (Math.), one which can be divided exactly by a number exceeding unity, as 6 by 2 or 3. the opposite of

Webster 1913

• noun a quantity expressed in two different units
  
  • one hour and ten minutes

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• (Math.), one constructed according to a varying scale of denomination; as, 3 cwt., 1 qr., 5 lb.; called also denominate number.

Webster 1913

• a number associated with, or applied to, a particular object, as three men, five days, etc., as distinguished from an abstract number, or one used without reference to a particular object.

Webster 1913

• a number produced by multiplying a number into itself, and that product again by the same number. See Cube.

Webster 1913

• noun a positional system of numeration that uses decimal digits and a base of ten
  decimal numeration system; decimal system.
  

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• . (Arith.) See under Abundant.

Webster 1913

• noun a positional system of numeration that uses duodecimal digits and a radix of twelve
  duodecimal system.
  

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• noun the ratio of the focal length to the diameter of a (camera) lens system
  focal ratio; f number; speed.
  

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• noun a number in the Fibonacci sequence
  

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• . See Figurate numbers, under Figurate.

Webster 1913

• (Math.), numbers, or series of numbers, formed from any arithmetical progression in which the first term is a unit, and the difference a whole number, by taking the first term, and the sums of the first two, first three, first four, etc., as the successive terms of a new series, from which another may be formed in the same manner, and so on, the numbers in the resulting series being such that points representing them are capable of symmetrical arrangement in different geometrical figures, as triangles, squares, pentagons, etc. In the following example, the two lower lines are composed of figurate numbers, those in the second line being triangular, and represented thus: . 1, 2, 3, 4, etc. . . . 1, 3, 6, 10, etc. . . . . . . . etc. 1, 4, 10, 20, etc . . . . . . . . . . . .

Webster 1913

• noun a number represented in fixed-point notation
  

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• noun a number represented in floating-point notation
  

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• (Chronol.), a number showing the year of the lunar or Metonic cycle. It is reckoned from 1 to 19, and is so called from having formerly been written in the calendar in gold.

Webster 1913

• (Arith.), the numbers of the series 1, 7, 18, 34, 55, etc., being figurate numbers formed by adding successively the terms of the arithmetical series 1, 6, 11, 16, 21, etc.

Webster 1913

• noun a positional system of numeration that uses hexadecimal digits and a radix of sixteen
  hexadecimal number system; hexadecimal system.
  

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• noun a numeral or string of numerals that is used for identification
  number.
  
  • she refused to give them her Social Security number

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• noun (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1
  imaginary; complex number; complex quantity.
  

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• noun the part of a complex number that has the square root of -1 as a factor
  imaginary part.
  

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• (Math.), a number either greater or less than the sum of its several divisors; in the former case, it is called also a defective number; in the latter, an abundant number.

Webster 1913

• in numbered parts; as, a book published in numbers.

Webster 1913

• approximately in even units, tens, hundreds, etc.; as, a bin holding 99 or 101 bushels may be said to hold in round numbers 100 bushels.

Webster 1913

• . See Prime numbers, under Prime.

Webster 1913

• (Arith.), two numbers, which, with respect to a third, are such that their difference can not be divided by it without a remainder, the two numbers being said to be incongruous with respect to the third; as, twenty-five are incongruous with respect to four.

Webster 1913

• noun a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
  index; indicator; indicant.
  

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• noun a real number that cannot be expressed as a rational number
  irrational.
  

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• noun a large indefinite number
  plurality; battalion; pack; multitude.
  
  • a battalion of ants
  • a multitude of TV antennas
  • a plurality of religions

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• noun (statistics) law stating that a large number of items taken at random from a population will (on the average) have the population statistics
  Bernoulli's law.
  

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• noun the number on the license plate that identifies the car that bears it
  license number.
  

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• (Math.), such numbers as have relation to length only: such is a number which represents one side of a plane figure. If the plane figure is square, the linear figure is called a root.

Webster 1913

• noun the ratio of the speed of a moving body to the speed of sound
  

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• noun the atomic number of an extra stable strongly bound atomic nucleus: 2, 8, 20, 28, 50, 82 or 126
  

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• noun the sum of the number of neutrons and protons in an atomic nucleus
  mass number.
  

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• a whole number and a fraction taken together.

Webster 1913

• noun the number 1 and any other number obtained by adding 1 to it repeatedly
  

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• noun the sum of the number of neutrons and protons in an atomic nucleus
  mass number.
  

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• noun the first element in a countable series
  number 1; first.
  
  • the first of the month

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• noun agreement in number between words in the same grammatical construction (e.g., between adjectives and the nouns they modify)
  

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• noun someone able to perform complex and lengthy calculations
  
• noun a computer capable of performing a large number of mathematical operations per second
  

WordNet

• noun performing complex and lengthy numerical calculations
  

WordNet

• noun a reference to yourself or myself etc.; `take care of number one' means to put your own interests first
  
• noun the first or highest in an ordering or series
  first.
  
  • He wanted to be the first
• noun the first element in a countable series
  number 1; first.
  
  • the first of the month

WordNet

• noun a golf club (a wood) with a near vertical face that is used for hitting long shots from the tee
  driver.
  

WordNet

• noun any notation for the representation of numbers
  numeration system; system of numeration; number representation system.
  

WordNet

• noun any notation for the representation of numbers
  numeration system; system of numeration; number representation system.
  

WordNet

• noun a mathematician specializing in number theory
  

WordNet

• a machine for printing consecutive numbers, as on railway tickets, bank bills, etc.

Webster 1913

• noun an illegal daily lottery
  numbers game; numbers; numbers pool.
  

WordNet

• noun an illegal daily lottery
  numbers game; numbers; numbers pool.
  

WordNet

• noun an illegal daily lottery
  numbers game; numbers; numbers pool.
  

WordNet

• noun a positional system of numeration that uses octal digits and a radix of eight
  octal numeration system.
  

WordNet

• noun a measure of the antiknock properties of gasoline
  octane rating.
  

WordNet

• noun a person or thing having the same function or characteristics as another
  counterpart; vis-a-vis.
  

WordNet

• noun the number designating place in an ordered sequence
  ordinal; no..
  

WordNet

• noun the degree of oxidation of an atom or ion or molecule; for simple atoms or ions the oxidation number is equal to the ionic charge
  oxidation state.
  
  • the oxidation number of hydrogen is +1 and of oxygen is -2

WordNet

• noun the system of numbering pages
  pagination; paging; folio.
  

WordNet

• (Math.), the resolution of integers into parts subject to given conditions.

Webster 1913

• (Arith.), a number equal to the sum of all its divisors; as, 28, whose aliquot parts, or divisors, are 14, 7, 4, 2, 1. See Abundant number, under Abundant. Brande & C.

Webster 1913

• noun a number you choose and use to gain access to various accounts
  personal identification number; PIN.
  

WordNet

• noun the number is used in calling a particular telephone
  phone number; number.
  
  • he has an unlisted number

WordNet

• noun a number you choose and use to gain access to various accounts
  personal identification number; PIN.
  

WordNet

• (Gram.), the number which designates more than one. See Number, n., 8.

Webster 1913

• noun the number of a letter box at the post office where mail is collected
  PO Box No; PO box number; box number.
  

WordNet

• certain figurate numbers. See under Figurate.

Webster 1913

• noun the number of a letter box at the post office where mail is collected
  PO Box No; PO box number; box number.
  

WordNet

• noun an integer that has no integral factors but itself and 1
  

WordNet

• (Arith.), a number which is exactly divisible by no number except itself or unity, as 5, 7, 11.
• .

Webster 1913

• noun an imaginary number of the form a+bi where a is 0
  

WordNet

• (Math.), certain series of figurate numbers expressing the number of balls or points that may be arranged in the form of pyramids. Thus 1, 4, 10, 20, 35, etc., are trangular pyramidal numbers; and 1, 5, 14, 30, 55, etc., are square pyramidal numbers.

Webster 1913

• noun a routine designed to yield a random number
  

WordNet

• noun an integer or a fraction
  rational.
  

WordNet

• noun any rational or irrational number
  real.
  

WordNet

• noun the number on the license plate that identifies the car that bears it
  license number.
  

WordNet

• noun a positional system of numeration that uses hexadecimal digits and a radix of sixteen
  hexadecimal number system; hexadecimal system.
  

WordNet

• (Arith. & Alg.), those fractions whose denominators are some power of sixty; as, ¹⁄₆₀, ¹⁄₃₆₀₀, ¹⁄₂₁₆₀₀₀; called also astronomical fractions, because formerly there were no others used in astronomical calculations.

Webster 1913

• noun the number of a particular individual's Social Security account
  

WordNet

• . See square, n., 6.

Webster 1913

• (Math.), that number or quantity which, multiplied by itself produces the given number or quantity.

Webster 1913

• noun the ratio of the focal length to the diameter of a (camera) lens system
  focal ratio; f number; speed.
  

WordNet

• noun the number is used in calling a particular telephone
  phone number; number.
  
  • he has an unlisted number

WordNet

• noun an irrational number that is not algebraic
  

WordNet

• (Math.), the series of numbers formed by the successive sums of the terms of an arithmetical progression, of which the first term and the common difference are 1. See Figurate numbers, under Figurate.

Webster 1913

• noun the reciprocal of the wavelength of a wave
  

WordNet

• noun any of the natural numbers (positive or negative) or zero
  integer.
  
  • an integer is a number that is not a fraction

WordNet

• (Math.), a number which is not a fraction or mixed number; an integer.

Webster 1913