homolog

[hoh-muh-lawg, -log, hom-uh-] /ˈhoʊ məˌlɔg, -ˌlɒg, ˈhɒm ə-/
noun
1.
homologue.
British Dictionary definitions for homolog

homologue

/ˈhɒməˌlɒɡ/
noun
1.
(biology) a homologous part or organ
2.
(chem) any homologous compound
homolog in Science
homologue or homolog
  (hŏm'ə-lôg', hō'mə-)   

  1. A homologous organ or part.

  2. A homologous chromosome.

  3. A homologous chemical compound. Compare analog.