magnetic : Idioms & Phrases

• noun functional magnetic resonance imaging that relies on intrinsic changes in hemoglobin oxygenation
  BOLD FMRI.
  

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• a telegraph in which an operator at one station causes words or signs to be made at another by means of a current of electricity, generated by a battery and transmitted over an intervening wire.

Webster 1913

E*lec`tro-mag*net"ic adjective

Definitions

1. Of, Pertaining to, or produced by, magnetism which is developed by the passage of an electric current.

Webster 1913

• an engine in which the motive force is electro-magnetism.

Webster 1913

• the influence by which an electric current produces magnetic polarity in certain bodies near or around which it passes.

Webster 1913

• (Physics), a theory of light which makes it consist in the rapid alternation of transient electric currents moving transversely to the direction of the ray.

Webster 1913

• noun a form of magnetic resonance imaging of the brain that registers blood flow to functioning areas of the brain
  fMRI.
  

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• etc. See under Amplitude, Attraction, etc.

Webster 1913

• noun attraction for iron; associated with electric currents as well as magnets; characterized by fields of force
  magnetic attraction; magnetism.
  

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• a combination of bar or horseshoe magnets with the like poles adjacent, so as to act together with great power.

Webster 1913

• noun container consisting of any configuration of magnetic fields used to contain a plasma during controlled thermonuclear reactions
  

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• noun a nonvolatile storage device that holds information in the form of bubbles on a thin film of magnetic silicate; no longer used in most computers
  

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• noun compass based on an indicator (as a magnetic needle) that points to the magnetic north
  

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• a contrivance connected with a ship's compass for compensating or neutralizing the effect of the iron of the ship upon the needle.

Webster 1913

• noun (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories
  core.
  
  • each core has three wires passing through it, providing the means to select and detect the contents of each bit

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• noun (computer science) a computer memory consisting of an array of magnetic cores; now superseded by semiconductor memories
  core memory.
  

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• curves indicating lines of magnetic force, as in the arrangement of iron filings between the poles of a powerful magnet.

Webster 1913

• noun the angle (at a particular location) between magnetic north and true north
  variation; magnetic declination.
  

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• noun (physics) the angle that a magnetic needle makes with the plane of the horizon
  magnetic dip; angle of dip; inclination; dip.
  

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• noun a dipole with opposing magnetic poles
  

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• noun (physics) a current loop gives rise to a magnetic field characteristic of a magnetic dipole
  
  • An orbiting electron in an atom will have a magnetic dipole moment

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• noun (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored
  disk; disc; magnetic disc.
  

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• noun (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored
  disk; disc; magnetic disc.
  

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• . (a) (Chem. Physics) Those elements, as iron, nickel, cobalt, chromium, manganese, etc., which are capable or becoming magnetic. (b) (Physics) In respect to terrestrial magnetism, the declination, inclination, and intensity . (c) See under Element.

Webster 1913

• noun an imaginary line paralleling the equator where a magnetic needle has no dip
  aclinic line.
  

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• the line around the equatorial parts of the earth at which there is no dip, the dipping needle being horizontal.

Webster 1913

• noun the lines of force surrounding a permanent magnet or a moving charged particle
  magnetic field; flux.
  

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• any space through which magnet exerts its influence.

Webster 1913

• noun the amount of magnetic flux in a unit area perpendicular to the direction of magnetic flow
  magnetic flux density; magnetic field strength; magnetic induction.
  

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• the hypothetical fluid whose existence was formerly assumed in the explanations of the phenomena of magnetism.

Webster 1913

• noun a measure of the strength of a magnetic field over a given area
  
• noun the lines of force surrounding a permanent magnet or a moving charged particle
  magnetic field; flux.
  

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• noun the amount of magnetic flux in a unit area perpendicular to the direction of magnetic flow
  magnetic flux density; magnetic field strength; magnetic induction.
  

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• noun a measure of the strength of a magnetic field per unit area
  flux unit.
  

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• noun attraction for iron; associated with electric currents as well as magnets; characterized by fields of force
  magnetic attraction; magnetism.
  

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• noun an electromagnet (as on a tape recorder) that converts electrical variations into magnetic variations that can be stored on a surface and later retrieved
  

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• noun (physics) the angle that a magnetic needle makes with the plane of the horizon
  magnetic dip; angle of dip; inclination; dip.
  

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• noun the process that makes a substance magnetic (temporarily or permanently)
  magnetisation; magnetization.
  
• noun the amount of magnetic flux in a unit area perpendicular to the direction of magnetic flow
  magnetic flux density; magnetic field strength; magnetic induction.
  

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• noun an ink that contains particles of a magnetic substance whose presence can be detected by magnetic sensors
  

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• noun the amount of magnetic flux in a unit area perpendicular to the direction of magnetic flow
  magnetic flux density; magnetic field strength; magnetic induction.
  

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• . (Min.) Same as Magnetite.

Webster 1913

• noun an oxide of iron that is strongly attracted by magnets
  magnetite.
  

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• noun high-speed rail technology; train is suspended on a magnetic cushion above a magnetized track and so travels free of friction
  maglev.
  

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• noun a line of force in a magnetic field
  

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• noun any storage medium in which different patterns of magnetization are used to represent stored bits or bytes of information
  magnetic storage; magnetic medium.
  
  • the hard disk in you computer is magnetic storage

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• noun an imaginary line passing through both magnetic poles of the Earth
  

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• noun (nautical) a marine mine that is detonated by a mechanism that responds to magnetic material (as the steel hull of a ship)
  

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• noun the torque exerted on a magnet or dipole when it is placed in a magnetic field
  moment of a magnet.
  

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• noun a hypothetical particle with a single magnetic pole instead of the usual two
  

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• noun a slender magnet suspended in a magnetic compass on a mounting with little friction; used to indicate the direction of the earth's magnetic pole
  

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• a slender bar of steel, magnetized and suspended at its center on a sharp-pointed pivot, or by a delicate fiber, so that it may take freely the direction of the magnetic meridian. It constitutes the essential part of a compass, such as the mariner's and the surveyor's.

Webster 1913

• noun the direction in which a compass needle points
  compass north; north.
  

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• noun either of two points where the lines of force of the Earth's magnetic field are vertical
  magnetic pole.
  
• noun one of the two ends of a magnet where the magnetism seems to be concentrated
  pole; magnetic pole.
  

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• noun either of two points where the lines of force of the Earth's magnetic field are vertical
  magnetic pole.
  
• noun one of the two ends of a magnet where the magnetism seems to be concentrated
  pole; magnetic pole.
  

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• the two points in the opposite polar regions of the earth at which the direction of the dipping needle is vertical.

Webster 1913

• noun a brownish iron sulfide mineral (FeS) having weak magnetic properties
  pyrrhotite; pyrrhotine.
  

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• . See Pyrrhotite.

Webster 1913

• noun recorder consisting of equipment for making records on magnetic media
  

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• noun resonance of electrons or atoms or molecules or nuclei to radiation frequencies as a result of space quantization in a magnetic field
  

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• noun the use of nuclear magnetic resonance of protons to produce proton density images
  MRI.
  

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• noun any storage medium in which different patterns of magnetization are used to represent stored bits or bytes of information
  magnetic storage; magnetic medium.
  
  • the hard disk in you computer is magnetic storage

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• noun any storage medium in which different patterns of magnetization are used to represent stored bits or bytes of information
  magnetic storage; magnetic medium.
  
  • the hard disk in you computer is magnetic storage

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• noun a sudden disturbance of the earth's magnetic field; caused by emission of particles from the sun
  

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• (Terrestrial Physics), a disturbance of the earth's magnetic force characterized by great and sudden changes.

Webster 1913

• noun a short strip of magnetic tape attached to a credit card or debit card; it contains data that will tell a reading device who you are and what your account number is, etc.
  

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• noun memory device consisting of a long thin plastic strip coated with iron oxide; used to record audio or video signals or to store computer information
  mag tape; tape.
  
  • he took along a dozen tapes to record the interview

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• a telegraph acting by means of a magnet. See Telegraph.

Webster 1913

• noun the angle (at a particular location) between magnetic north and true north
  variation; magnetic declination.
  

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• noun the pole of a magnet that points toward the south when the magnet is suspended freely
  negative pole; south-seeking pole.
  

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• noun resonance of protons to radiation in a magnetic field
  nuclear magnetic resonance; NMR.
  

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• noun the pole of a magnet that points toward the north when the magnet is suspended freely
  north-seeking pole; positive pole.
  

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• noun resonance of protons to radiation in a magnetic field
  nuclear magnetic resonance; NMR.
  

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• noun the magnetic field of the sun
  

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