heterologous adjective. 
[hɛtǝ'rɒlǝgǝs] M19.[from HETERO- + Greek logos relation, ratio: see LOGOS, -OUS.]Not corresponding; consisting of different elements; derived from or pertaining to different species, bodies, etc. Opp. 
HOMOLOGOUS. 
 [TahlilGaran] English Dictionary ▲