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

Alternative form of regroup.

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

(social sciences) A group of people within a society who can be differentiated by non-economic qualities such as honor, prestige, ethnicity, race, and religion.

Synonym of boy band

(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

The group of self-homeomorphisms of a topological space, modulo homotopy.