noun
or homo·log ˈhōməˌlȯg, ˈhäm- also -läg
( -s )
Etymology: from homologous, after such pairs as English analogous: analogue
1. : one that exhibits homology
interlingual homologue
homologues of the ethylene series
corresponding sides of similar polygons are homologues of each other
pectoral fin, wing, and arm are homologues
2. : a homologous chromosome or pair of chromosomes