any of two or more words that have the same spelling and pronunciation but different meanings and origins, as with the noun and the verb bear
in taxonomy, a species or genus name that has been used for two or more different organisms
homonymic /-ʹnimik/ adj
homonymous /hoʹmoniməs/ adj
homonymously /hoʹmoniməsli/ adv
homonymy /hoʹmonimi/ noun
[via Latin from Greek homōnymon, neuter of homōnymos having the same name, from hom- + onyma, onoma name]