CHEMICAL GROUP

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 Dictionary entry overview: What does chemical group mean? 

• CHEMICAL GROUP (noun)
  The noun CHEMICAL GROUP has 1 sense:

1. (chemistry) two or more atoms bound together as a single unit and forming part of a molecule

  Familiarity information: CHEMICAL GROUP used as a noun is very rare.

 Dictionary entry details 

• CHEMICAL GROUP (noun)

Sense 1

Meaning:

(chemistry) two or more atoms bound together as a single unit and forming part of a molecule

Classified under:

Nouns denoting substances

Synonyms:

chemical group; group; radical

Hypernyms ("chemical group" is a kind of...):

building block; unit (a single undivided natural thing occurring in the composition of something else)

Domain category:

chemical science; chemistry (the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions)

Hyponyms (each of the following is a kind of "chemical group"):

carboxyl; carboxyl group (the univalent radical -COOH; present in and characteristic of organic acids)

vinyl; vinyl group; vinyl radical (a univalent chemical radical derived from ethylene)

uranyl; uranyl group; uranyl radical (the bivalent radical UO2 which forms salts with acids)

nitrite (the radical -NO2 or any compound containing it (such as a salt or ester of nitrous acid))

nitro group (the group -NO3)

butyl (a hydrocarbon radical (C4H9))

propyl; propyl group; propyl radical (the monovalent organic group C3H7- obtained from propane)

methylene; methylene group; methylene radical (the bivalent radical CH2 derived from methane)

ketone group (a group having the characteristic properties of ketones)

hydroxyl; hydroxyl group; hydroxyl radical (the monovalent group -OH in such compounds as bases and some acids and alcohols)

hydrazo group; hydrazo radical (the bivalent group -HNNH- derived from hydrazine)

glyceryl (a trivalent radical derived from glycerol by removing the three hydroxyl radicals)

cyanide group; cyanide radical; cyano group; cyano radical (the monovalent group -CN in a chemical compound)

chromophore (the chemical group that gives color to a molecule)

acyl; acyl group (any group or radical of the form RCO- where R is an organic group)

carbonyl group (the bivalent radical CO)

arsenic group; cacodyl; cacodyl group; cacodyl radical (the univalent group derived from arsine)

benzoyl group; benzoyl radical (the univalent radical derived from benzoic acid)

benzyl; benzyl group; benzyl radical (the univalent radical derived from toluene)

azo group; azo radical (the bivalent group -N=N- united to two hydrocarbon groups)

azido group; azido radical (the univalent group N3- derived from hydrazoic acid)

amyl (a hydrocarbon radical that occurs in many organic compounds)

amino; amino group (the radical -NH2)

allyl; allyl group; allyl radical (the univalent unsaturated organic radical C3H5; derived from propylene)

alkyl; alkyl group; alkyl radical (any of a series of univalent groups of the general formula CnH2n+1 derived from aliphatic hydrocarbons)

aldehyde group; aldehyde radical (the chemical group -CHO)

alcohol group; alcohol radical (the chemical group -OH)

Holonyms ("chemical group" is a part of...):

molecule ((physics and chemistry) the simplest structural unit of an element or compound)

 Context examples 

A class of compounds containing the chemical group -N=C=S.

(Isothiocyanate, NCI Thesaurus/CRCH)

A chemical group containing the monovalent -N=C=S group.

(Isothiocyanate, NCI Thesaurus)

A methyl group is a chemical group containing one carbon and three hydrogen atoms.

(DNA methylase, NCI Dictionary)

Reference to a chemical group or moiety that can complex or chelate a metal ion.

(Metal Ion Binding, NCI Thesaurus)

Alkyltransferases and Aryltransferases are classes of enzymes that transfer an alkyl or aryl chemical group from one compound (the donor) to another compound (the acceptor).

(Alkyltransferase and Aryltransferase, NCI Thesaurus)