homolog

Etymology
Borrowed from, From , equivalent to.

Noun

 * 1) Something homologous; a homologous organ or part, chemical compound or chromosome.
 * 2)  A word shared by two languages or dialects.
 * 3)  One of a group of similar DNA sequences that share a common ancestry.
 * 4)  A member of a homologous series.
 * 1)  A member of a homologous series.

Adjective

 * 1) homologous (all senses)