group : Idioms & Phrases

Index


abelian group

  • noun a group that satisfies the commutative law
    Abelian group.
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abo blood group system

  • 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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abo group

  • 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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acetyl group

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

  • 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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adapid group

  • 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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age group

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

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

  • noun the chemical group -OH
    alcohol radical.
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aldehyde group

  • noun the chemical group -CHO
    aldehyde radical.
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alkyl group

  • 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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allyl group

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

  • amidogen, NH2.
Webster 1913

amino group

  • noun the radical -NH2
    amino.
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amphibole group

  • 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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animal group

  • noun a group of animals
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armed islamic group

  • 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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arsenic group

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

  • adverb all together
    en masse; en bloc.
    • the students turned out en masse
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association of islamic groups and communities

  • 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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azido group

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

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

  • noun an army unit usually consisting of five companies
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benzoyl group

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

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

  • noun a group of plants or animals
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blood group

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

  • 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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cacodyl group

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

  • noun the bivalent radical CO
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carboxyl group

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

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

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

commutative group

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

  • 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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cyanide group

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

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

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

elite group

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

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

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

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

  • noun the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom
    ethyl radical; ethyl.
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first of october antifascist resistance group

  • 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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group a

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

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

  • noun action taken by a group of people
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group amentiferae

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

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

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

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

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

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

  • 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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group meeting

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

  • 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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group participation

  • noun participation by all members of a group
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group practice

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

  • 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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group pteridospermae

  • 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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group pteridospermaphyta

  • 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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group theory

  • noun the branch of mathematics dealing with groups
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group therapy

  • 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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Grouped columns

  • (Arch.), three or moro columns placed upon the same pedestal.
Webster 1913

harlech group

Har"lech group`
Etymology
So called from Harlech in Wales.
Definitions
  1. (Geol.) A minor subdivision at the base of the Cambrian system in Wales.
Webster 1913

helium group

  • noun the series of inert gases
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hydrazo group

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

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

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

  • 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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islamic group

  • 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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islamic group of uzbekistan

  • 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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jazz group

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

  • 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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ketone group

  • noun a group having the characteristic properties of ketones
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kin group

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

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

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

libyan fighting group

  • 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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libyan islamic fighting group

  • 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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libyan islamic group

  • 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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Lignitic group

  • . See Laramie group.
Webster 1913

linkage group

  • 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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llandeilo group

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

ludlow group

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

malaysia militant group

  • 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.
WordNet

malaysian mujahidin group

  • 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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mathematical group

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

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

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

  • 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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musical group

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

  • noun the group -NO3
WordNet
  • the radical NO2; called also nitroxyl.
Webster 1913

Normal group

  • (Geol.), a group of rocks taken as a standard. Lyell.
Webster 1913

occupational group

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

  • 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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orange group

  • 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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orly group

  • 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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peer group

  • noun contemporaries of the same status
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phycomycetes group

  • 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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play group

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

  • noun a group that plays pop music
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portage group

Por"tage group`
Etymology
So called from the township of Portage in New York.
Definitions
  1. (Geol.) A subdivision of the Chemung period in American geology. See Chart of Geology.
Webster 1913

potsdam group

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

pressure group

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

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

  • noun a meeting of people for psychotherapeutic purposes
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quebec group

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

rap group

  • noun a gathering of people holding a rap session
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revolutionary group

  • noun a political unit organized to promote revolution
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rock group

  • noun a band of musicians who play rock'n'roll music
    rock band.
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salafast group for call and combat

  • 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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salafist group

  • 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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scout group

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

  • noun a band of musicians who play skiffle
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social group

  • noun people sharing some social relation
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splinter group

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

  • (Chem.), the hypothetical radical, SO2.OH, the characteristic residue of sulphonic acids.
Webster 1913

taxonomic group

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

  • noun a political movement that uses terror as a weapon to achieve its goals
    terrorist organization; FTO; foreign terrorist organization.
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united self-defense group of colombia

  • 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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uranyl group

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

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

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

working group

  • 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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