group : Idioms & Phrases

• noun a group that satisfies the commutative law
  Abelian group.
  

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• noun a classification system for the antigens of human blood; used in blood transfusion therapy; four groups are A and B and AB and O
  ABO system; ABO blood group system.
  

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• noun a classification system for the antigens of human blood; used in blood transfusion therapy; four groups are A and B and AB and O
  ABO system; ABO blood group system.
  

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• noun the organic group of acetic acid (CH3CO-)
  acetyl; acetyl group; acetyl radical; ethanoyl radical.
  

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• noun any group or radical of the form RCO- where R is an organic group
  acyl.
  
  • an example of the acyl group is the acetyl group

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• noun extinct small mostly diurnal lower primates that fed on leaves and fruit; abundant in North America and Europe 30 to 50 million years ago; their descendents probably include the lemurs; some authorities consider them ancestral to anthropoids but others consider them only cousins
  Adapid.
  

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• noun a group of people having approximately the same age
  cohort; age bracket.
  

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• noun a unit of the United States Air Force larger than a squadron and smaller than a wing
  

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• noun the chemical group -OH
  alcohol radical.
  

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• noun the chemical group -CHO
  aldehyde radical.
  

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• noun any of a series of univalent groups of the general formula CnH2n+1 derived from aliphatic hydrocarbons
  alkyl; alkyl radical.
  

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• noun the univalent unsaturated organic radical C3H5; derived from propylene
  allyl radical; allyl.
  

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• amidogen, NH2.

Webster 1913

• noun the radical -NH2
  amino.
  

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• noun a group of minerals with similar crystal structures containing a silicate chain and combinations of chiefly sodium and calcium and magnesium and iron and aluminum
  

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• noun a group of animals
  

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• noun a terrorist organization of Islamic extremists whose violent activities began in 1992; aims to overthrow the secular Algerian regime and replace it with an Islamic state
  GIA.
  
  • the GIA has embarked on a terrorist campaign of civilian massacres

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• noun the univalent group derived from arsine
  cacodyl radical; cacodyl; arsenic group.
  

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• adverb all together
  en masse; en bloc.
  
  • the students turned out en masse

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• noun a Turkish terrorist group of fundamentalist Muslims with ties to al-Qaeda that operates in Germany; seeks the violent overthrow of the Turkish government and the establishment of an Islamic nation modeled on Iran
  Caliphate State; Association of Islamic Groups and Communities.
  

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• noun the univalent group N3- derived from hydrazoic acid
  azido radical.
  

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• noun the bivalent group -N=N- united to two hydrocarbon groups
  azo radical.
  

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• noun an army unit usually consisting of five companies
  

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• noun the univalent radical derived from benzoic acid
  benzoyl radical.
  

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• noun the univalent radical derived from toluene
  benzyl radical; benzyl.
  

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• noun a group of plants or animals
  

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• noun human blood cells (usually just the red blood cells) that have the same antigens
  blood type.
  

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• noun an inner circle of writers and artists and philosophers who lived in or around Bloomsbury early in the 20th century and were noted for their unconventional lifestyles
  

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• noun the univalent group derived from arsine
  cacodyl radical; cacodyl; arsenic group.
  

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• noun the bivalent radical CO
  

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• noun the univalent radical -COOH; present in and characteristic of organic acids
  carboxyl.
  

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• noun (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
  radical; group.
  

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Col`o*ra"do group

Definitions

1. (Geol.) A subdivision of the cretaceous formation of western North America, especially developed in Colorado and the upper Missouri region.

Webster 1913

• noun a group that satisfies the commutative law
  Abelian group.
  

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• noun a small group of indispensable persons or things
  core; nucleus.
  
  • five periodicals make up the core of their publishing program

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• noun the monovalent group -CN in a chemical compound
  cyano radical; cyanide radical; cyanide group.
  

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• noun the monovalent group -CN in a chemical compound
  cyano radical; cyanide radical; cyanide group.
  

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Da*ko"ta group`

Definitions

1. (Geol.) A subdivision at the base of the cretaceous formation in Western North America; -- so named from the region where the strata were first studied.

Webster 1913

• noun a group or class of persons enjoying superior intellectual or social or economic status
  elite.
  

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• noun a meeting of people to develop mutual understanding by freely expressing emotions
  

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• noun the organic group of acetic acid (CH3CO-)
  acetyl; acetyl group; acetyl radical; ethanoyl radical.
  

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• noun people of the same race or nationality who share a distinctive culture
  ethnos.
  

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• noun the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom
  ethyl radical; ethyl.
  

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• noun an armed wing of the (illegal) Communist Party of Spain; seeks to overthrow the Spanish government and replace it with a Marxist-Leninist regime
  GRAPO.
  
  • GRAPO is vehemently opposed to the United States

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• noun the blood group whose red cells carry the A antigen
  A; type A.
  

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• noun the blood group whose red cells carry both the A and B antigens
  type AB; AB.
  

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• noun action taken by a group of people
  

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• noun used in some classification systems for plants that bear catkins
  Amentiferae.
  

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• noun the blood group whose red cells carry the B antigen
  type B; B.
  

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• noun a commissioned officer (especially one in the Royal Air Force) equivalent in rank to a colonel in the army
  

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• noun used in former classification systems; approximately synonymous with order Caryophyllales
  Centrospermae.
  

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• noun a discussion among participants who have an agreed (serious) topic
  conference.
  

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• noun the branch of social psychology that studies the psychodynamics of interaction in social groups
  

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• noun insurance that is purchased by a group (such as the employees of a company) usually at a reduced rate to individual members of the group
  

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• noun a formally arranged gathering
  meeting.
  
  • next year the meeting will be in Chicago
  • the meeting elected a chairperson

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• noun the blood group whose red cells carry neither the A nor B antigens
  type O; O.
  
  • people with type O blood are universal donors

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• noun participation by all members of a group
  

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• noun (medicine) the practice of medicine by a group of physicians who share their premises and other resources
  

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• noun psychotherapy in which a small group of individuals meet with a therapist; interactions among the members are considered to be therapeutic
  group psychotherapy.
  

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• noun used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales
  group Pteridospermae; Pteridospermaphyta; Pteridospermae.
  

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• noun used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales
  group Pteridospermae; Pteridospermaphyta; Pteridospermae.
  

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• noun the branch of mathematics dealing with groups
  

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• noun psychotherapy in which a small group of individuals meet with a therapist; interactions among the members are considered to be therapeutic
  group psychotherapy.
  

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• (Arch.), three or moro columns placed upon the same pedestal.

Webster 1913

Har"lech group`

Etymology

Definitions

1. (Geol.) A minor subdivision at the base of the Cambrian system in Wales.

Webster 1913

• noun the series of inert gases
  

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• noun the bivalent group -HNNH- derived from hydrazine
  hydrazo radical.
  

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• noun the monovalent group -OH in such compounds as bases and some acids and alcohols
  hydroxyl; hydroxyl radical.
  

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• noun a channel for communication between groups
  liaison; contact; link.
  
  • he provided a liaison with the guerrillas

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• noun (usually plural) a social group whose members control some field of activity and who have common aims
  interest.
  
  • the iron interests stepped up production

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• noun a clandestine group of southeast Asian terrorists organized in 1993 and trained by al-Qaeda; supports militant Muslims in Indonesia and the Philippines and has cells in Singapore and Malaysia and Indonesia
  Islamic Community; Jemaah Islamiyah; Islamic Group; JI; Malaysia Militant Group.
  
• noun a terrorist organization of militant Islamists organized into tiny cells of extreme fundamentalists; emerged during the 1970s mainly in Egyptian jails
  al-Gama'a al-Islamiyya.
  
  • al-Gama'a al-Islamiyya uses force to push Egyptian society toward Islamic rule

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• noun a terrorist group of Islamic militants formed in 1996; opposes Uzbekistan's secular regime and wants to establish an Islamic state in central Asia; is a conduit for drugs from Afghanistan to central Asian countries
  IMU; Islamic Party of Turkestan.
  

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• noun a small band of jazz musicians
  jazz band; combo.
  

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• noun a Turkish terrorist group of fundamentalist Muslims with ties to al-Qaeda that operates in Germany; seeks the violent overthrow of the Turkish government and the establishment of an Islamic nation modeled on Iran
  Caliphate State; Association of Islamic Groups and Communities.
  

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• noun a group having the characteristic properties of ketones
  

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• noun group of people related by blood or marriage
  clan; tribe; kindred; kin group; kin.
  

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• noun group of people related by blood or marriage
  clan; tribe; kindred; kin group; kin.
  

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Lar"a*mie group`

Definitions

1. (Geol.) An extensive series of strata, principally developed in the Rocky Mountain region, as in the Laramie Mountains, and formerly supposed to be of the Tertiary age, but now generally regarded as Cretaceous, or of intermediate and transitional character. It contains beds of lignite, often valuable for coal, and is hence also called the lignitic group. See Chart of Geology.

Webster 1913

• noun a Libyan terrorist group organized in 1995 and aligned with al-Qaeda; seeks to radicalize the Libyan government; attempted to assassinate Qaddafi
  Libyan Islamic Fighting Group; Libyan Fighting Group; FIG; Al-Jama'a al-Islamiyyah al-Muqatilah bi-Libya.
  

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• noun a Libyan terrorist group organized in 1995 and aligned with al-Qaeda; seeks to radicalize the Libyan government; attempted to assassinate Qaddafi
  Libyan Islamic Fighting Group; Libyan Fighting Group; FIG; Al-Jama'a al-Islamiyyah al-Muqatilah bi-Libya.
  

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• noun a Libyan terrorist group organized in 1995 and aligned with al-Qaeda; seeks to radicalize the Libyan government; attempted to assassinate Qaddafi
  Libyan Islamic Fighting Group; Libyan Fighting Group; FIG; Al-Jama'a al-Islamiyyah al-Muqatilah bi-Libya.
  

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• . See Laramie group.

Webster 1913

• noun any pair of genes that tend to be transmitted together
  linked genes.
  
  • the genes of Drosophila fall into four linkage groups

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Llan*dei"lo group`

Definitions

1. (Geol.) A series of strata in the lower Silurian formations of Great Britain; -- so named from Llandeilo in Southern Wales. See Chart of Geology.

Webster 1913

Lud"low group`

Definitions

1. (Geol.) A subdivision of the British Upper Silurian lying below the Old Red Sandstone; -- so named from the Ludlow, in Western England. See the Chart of Geology.

Webster 1913

• noun a clandestine group of southeast Asian terrorists organized in 1993 and trained by al-Qaeda; supports militant Muslims in Indonesia and the Philippines and has cells in Singapore and Malaysia and Indonesia
  Islamic Community; Jemaah Islamiyah; Islamic Group; JI; Malaysia Militant Group.
  

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• noun a clandestine group of southeast Asian terrorists organized in 1993 and trained by al-Qaeda; supports militant Muslims in Indonesia and the Philippines and has cells in Singapore and Malaysia and Indonesia
  Islamic Community; Jemaah Islamiyah; Islamic Group; JI; Malaysia Militant Group.
  

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• noun a set that is closed, associative, has an identity element and every element has an inverse
  group.
  

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• noun the univalent radical CH3- derived from methane
  methyl radical; methyl.
  

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• noun the bivalent radical CH2 derived from methane
  methylene; methylene radical.
  

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• noun a unit that is part of some military service
  military unit; force; military force.
  
  • he sent Caesar a force of six thousand men

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• noun an organization of musicians who perform together
  musical organization; musical organisation.
  

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• noun the group -NO3
  

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• the radical NO2; called also nitroxyl.

Webster 1913

• (Geol.), a group of rocks taken as a standard. Lyell.

Webster 1913

• noun a body of people doing the same kind of work
  vocation.
  

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• noun extinct tiny nocturnal lower primates that fed on fruit and insects; abundant in North America and Europe 30 to 50 million years ago; probably gave rise to the tarsiers; some authorities consider them ancestral to anthropoids but others consider them only cousins
  Omomyid.
  

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• noun a terrorist group of Protestants who oppose any political settlement with Irish nationalists; a paramilitary group that attacks Catholic interests in Northern Ireland
  OV.
  

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• noun a militant Marxist-Leninist terrorist organization formed in 1975 to force Turkey to acknowledge killing more than a million Armenians and forcibly removing them from border areas in 1915; wants Turkey to pay reparations and cede territory to Armenia
  ASALA; 3rd October Organization; Armenian Secret Army for the Liberation of Armenia.
  
  • ASALA bombing at Orly Airport in Paris in 1983 killed 8 and wounded 55 people

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• noun contemporaries of the same status
  

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• noun a large and probably unnatural group of fungi and funguslike organisms comprising the Mastigomycota (including the Oomycetes) and Zygomycota subdivisions of the division Eumycota; a category not used in all systems
  Phycomycetes.
  

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• noun a small informal nursery group meeting for half-day sessions
  playschool.
  

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• noun a group that plays pop music
  

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Por"tage group`

Etymology

Definitions

1. (Geol.) A subdivision of the Chemung period in American geology. See Chart of Geology.

Webster 1913

Pots"dam group`

Definitions

1. (Geol.) A subdivision of the Primordial or Cambrian period in American geology; -- so named from the sandstone of Potsdam, New York. See Chart of Geology.

Webster 1913

• noun a group of people who try actively to influence legislation
  lobby; third house.
  

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• noun the monovalent organic group C3H7- obtained from propane
  propyl; propyl radical.
  

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• noun a meeting of people for psychotherapeutic purposes
  

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Que*bec" group`

Definitions

1. (Geol.) The middle of the three groups into which the rocks of the Canadian period have been divided in the American Lower Silurian system. See the Chart of Geology.

Webster 1913

• noun a gathering of people holding a rap session
  

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• noun a political unit organized to promote revolution
  

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• noun a band of musicians who play rock'n'roll music
  rock band.
  

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• noun an Algerian extremist Islamic offshoot of the Armed Islamic Group; now the largest and most active armed terrorist group in Algeria that seeks to overthrow the government; a major source of support and recruitment for al-Qaeda operations in Europe and northern Africa
  GSPC; Salafast Group for Call and Combat.
  

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• noun an Algerian extremist Islamic offshoot of the Armed Islamic Group; now the largest and most active armed terrorist group in Algeria that seeks to overthrow the government; a major source of support and recruitment for al-Qaeda operations in Europe and northern Africa
  GSPC; Salafast Group for Call and Combat.
  

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• noun a unit of Girl or Boy Scouts
  scout troop; troop.
  

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• noun a band of musicians who play skiffle
  

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• noun people sharing some social relation
  

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• noun a faction or sect that has broken away from its parent organization
  

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• (Chem.), the hypothetical radical, SO2.OH, the characteristic residue of sulphonic acids.

Webster 1913

• noun animal or plant group having natural relations
  taxonomic category; taxon.
  

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• noun a political movement that uses terror as a weapon to achieve its goals
  terrorist organization; FTO; foreign terrorist organization.
  

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• noun a terrorist organization in Colombia formed in 1997 as an umbrella for local and regional paramilitary groups; is financed by earnings from narcotics and serves to protect the economic interests of its members
  United Self-Defense Force of Colombia; AUC; Autodefensas Unidas de Colombia.
  
  • the AUC conducted over 800 assassinations in one year

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• noun the bivalent radical UO2 which forms salts with acids
  uranyl; uranyl radical.
  

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• noun a univalent chemical radical derived from ethylene
  vinyl radical; vinyl.
  

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Wen"lock group`

Definitions

1. (Geol.) The middle subdivision of the Upper Silurian in Great Britain; -- so named from the typical locality in Shropshire.

Webster 1913

• noun a group of people working together temporarily until some goal is achieved
  working party.
  
  • the working group was supposed to report back in two weeks

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