[ho.mol.o.gous] adj [Gk homologos agreeing, fr. hom- + legein to say--more at legend] (1660) 1 a: having the same relative position, value, or structure: as (1): exhibiting biological homology (2): having the same or allelic genes with genetic loci usu. arranged in the same order "~ chromosomes" b: belonging to or consisting of a chemical series whose successive members have a regular difference in composition esp. of one methylene group
2: derived from or developed in response to organisms of the same species "~ tissue graft"