Source : Webster's Revised Unabridged Dictionary (1913)

Homological \Ho`mo*log"ic*al\, a.
   Pertaining to homology; having a structural affinity
   proceeding from, or base upon, that kind of relation termed
   homology. -- {Ho`mo*log"ic*al*ly}, adv.

Source : WordNet®

homological
     adj : similar in evolutionary origin but not in function [syn: {homologic}]