homologous

adj 1: (biology) having the same evolutionary origin but serving

different functions; "the wing of a bat and the arm of

a man are homologous" [ant: {analogous}, {heterologous}]

2: corresponding or similar in position or structure or

function or characteristics; especially derived from an

organism of the same species; "a homologous tissue graft"

[ant: {heterologous}, {autologous}]