chemical group
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| Noun | 1. | chemical group - (chemistry) two or more atoms bound together as a single unit and forming part of a molecule chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions building block, unit - a single undivided natural thing occurring in the composition of something else; "units of nucleic acids" acyl, acyl group - any group or radical of the form RCO- where R is an organic group; "an example of the acyl group is the acetyl group" alcohol group, alcohol radical - the chemical group -OH aldehyde group, aldehyde radical - the chemical group -CHO alkyl, alkyl group, alkyl radical - any of a series of univalent groups of the general formula CnH2n+1 derived from aliphatic hydrocarbons allyl, allyl group, allyl radical - the univalent unsaturated organic radical C3H5; derived from propylene amino, amino group - the radical -NH2 amyl - a hydrocarbon radical that occurs in many organic compounds azido group, azido radical - the univalent group N3- derived from hydrazoic acid azo group, azo radical - the bivalent group -N=N- united to two hydrocarbon groups benzoyl group, benzoyl radical - the univalent radical derived from benzoic acid molecule - (physics and chemistry) the simplest structural unit of an element or compound carbonyl group - the bivalent radical CO carboxyl, carboxyl group - the univalent radical -COOH; present in and characteristic of organic acids chromophore - the chemical group that gives color to a molecule cyanide group, cyanide radical, cyano group, cyano radical - the monovalent group -CN in a chemical compound glyceryl - a trivalent radical derived from glycerol by removing the three hydroxyl radicals hydrazo group, hydrazo radical - the bivalent group -HNNH- derived from hydrazine hydroxyl, hydroxyl group, hydroxyl radical - the monovalent group -OH in such compounds as bases and some acids and alcohols ketone group - a group having the characteristic properties of ketones butyl - a hydrocarbon radical (C4H9) nitro group - the group -NO3 nitrite - the radical -NO2 or any compound containing it (such as a salt or ester of nitrous acid) |
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