homonymous

a. [ L. homonymus, Gr. &unr_;; &unr_; the same + &unr_;, for &unr_; name; akin to E. name. ] 1. Having the same name or designation; standing in the same relation; -- opposed to heteronymous. [ 1913 Webster ]

2. Having the same name or designation, but different meaning or relation; hence, equivocal; ambiguous. [ 1913 Webster ]