a. [f. L. binōmin-is, f. bi- two + nōmin- (nom. nōmen) name + -AL 1.] Having or characterized by two names, esp. those of genus and species in scientific nomenclature.
1880. Günther, Fishes, 10. Linnæus has scarcely done anything beyond applying binominal terms to the species properly described and classified by Artedi.
1881. Trans. Vict. Inst., 24. In this way the binominal system is growing.
