Main Entry: ho·mol·o·gous

Pronunciation: \hō-ˈmä-lə-gəs, hə-\

Function: adjective

Etymology: Greek homologos agreeing, from hom- + legein to say — more at legend

Date: 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 usually arranged in the same order <homologous chromosomes> b : belonging to or consisting of a chemical series whose successive members have a regular difference in composition especially of one methylene group
2 : derived from or developed in response to organisms of the same species