The definition of homologous is having the same evolutionary origin, position or structure.(adjective)
The wing structure of a bird and the arm structure of a man are an example of things that arehomologous.
See homologous in Webster's New World College Dictionary
Origin: Gr homologos, agreeing < homos, same + legein, say: see logic
See homologous in American Heritage Dictionary 4
Origin: From Greek homologos, agreeing
Origin: : homo-, homo-
Origin: + logos, word, proportion; see leg- in Indo-European roots.
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