(taxonomy) Sometimes used to indicate that a formerly accepted taxonomic group is considered not to be paraphyletic or polyphyletic

plural of status group

(education, historical) A system of children's education in which one group studied while another group carried out activities.

(chemistry) Any of many effects in organic chemistry in which the course of a reaction, or its rate, is affected by the presence of a neighbouring functional group; anchimeric assistance

(inorganic chemistry, physics) Any chemical element from the main group.

plural of group specific antigen

The genetic material that codes for the structural protein of a retrovirus

(algebra) a free module over the ring of integers

(regular expressions) A grouping in a regular expression that doesn't store the value it matches (symbol: ?:).

(UK, politics) A Eurosceptic/pro-Brexit publicly funded political activist group subdivision of the UK Conservative Pary founded in 1992.