Noun

• S: (n) group, grouping (any number of entities (members) considered as a unit)
• S: (n) group, radical, chemical group ((chemistry) two or more atoms bound together as a single unit and forming part of a molecule)
• direct hyponym / full hyponym
• S: (n) 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"
• S: (n) alcohol group, alcohol radical (the chemical group -OH)
• S: (n) aldehyde group, aldehyde radical (the chemical group -CHO)
• S: (n) alkyl, alkyl group, alkyl radical (any of a series of univalent groups of the general formula CnH2n+1 derived from aliphatic hydrocarbons)
• S: (n) allyl, allyl group, allyl radical (the univalent unsaturated organic radical C3H5; derived from propylene)
• S: (n) amino, amino group (the radical -NH2)
• S: (n) amyl (a hydrocarbon radical that occurs in many organic compounds)
• S: (n) azido group, azido radical (the univalent group N3- derived from hydrazoic acid)
• S: (n) azo group, azo radical (the bivalent group -N=N- united to two hydrocarbon groups)
• S: (n) benzyl, benzyl group, benzyl radical (the univalent radical derived from toluene)
• S: (n) benzoyl group, benzoyl radical (the univalent radical derived from benzoic acid)
• S: (n) cacodyl, cacodyl group, cacodyl radical, arsenic group (the univalent group derived from arsine)
• S: (n) carbonyl group (the bivalent radical CO)
• S: (n) carboxyl, carboxyl group (the univalent radical -COOH; present in and characteristic of organic acids)
• S: (n) chromophore (the chemical group that gives color to a molecule)
• S: (n) cyano group, cyano radical, cyanide group, cyanide radical (the monovalent group -CN in a chemical compound)
• S: (n) glyceryl (a trivalent radical derived from glycerol by removing the three hydroxyl radicals)
• S: (n) hydrazo group, hydrazo radical (the bivalent group -HNNH- derived from hydrazine)
• S: (n) hydroxyl, hydroxyl group, hydroxyl radical (the monovalent group -OH in such compounds as bases and some acids and alcohols)
• S: (n) ketone group (a group having the characteristic properties of ketones)
• S: (n) methylene group, methylene radical, methylene (the bivalent radical CH2 derived from methane)
• S: (n) propyl, propyl group, propyl radical (the monovalent organic group C3H7- obtained from propane)
• S: (n) butyl (a hydrocarbon radical (C4H9))
• S: (n) nitro group (the group -NO3)
• S: (n) nitrite (the radical -NO2 or any compound containing it (such as a salt or ester of nitrous acid))
• S: (n) uranyl, uranyl group, uranyl radical (the bivalent radical UO2 which forms salts with acids)
• S: (n) vinyl, vinyl group, vinyl radical (a univalent chemical radical derived from ethylene)
• domain category
• direct hypernym / inherited hypernym / sister term
• S: (n) unit, building block (a single undivided natural thing occurring in the composition of something else) "units of nucleic acids"
• S: (n) thing (a separate and self-contained entity)
• S: (n) physical entity (an entity that has physical existence)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• part holonym
• S: (n) group, mathematical group (a set that is closed, associative, has an identity element and every element has an inverse)

Verb

• S: (v) group (arrange into a group or groups) "Can you group these shapes together?"
• direct troponym / full troponym
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• sentence frame
• S: (v) group, aggroup (form a group or group together)