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hom·o·logue, homolog (hom'ō-log),
A member of a homologous pair or series.
[homo- + G. logos, word, ratio, relation]
homologue(hŏm′ə-lôg′, -lŏg′, hō′mə-)
Something that is homologous, as an organ, body part, or gene.
Etymology: Gk, homos, same
1 any organ corresponding in function, origin, and structure to another organ, as the flippers of a seal correspond to human hands.
2 (in chemistry) one of a series of compounds, each formed by an added common atom or atom combination. For example, CH4, methane, is followed by C2H6, ethane, with the addition of a CH2 group. Also spelled homologue. Compare analog. homologous, adj.
homologue, homolog (hom′ŏ-log″) [Gr. homologos, agreeing, of one mind]
1. An organ or part common to several species.
2. One that corresponds to a part or organ in another structure.
3. In chemistry, any member of a series that resembles the other members in action and general structure but has a constant compositional difference such as a methyl, CH3, group.