Pronunciation: (bī-nō'mē-ul),[key] —n. 1. Algebra.an expression that is a sum or difference of two terms, as 3x + 2y and x2 - 4x. 2. Zool.,Bot.a taxonomic name consisting of a generic and a specific term, used to designate species.
—adj. 1. Algebra.consisting of or pertaining to two terms or a binomial.
2. Zool.,Bot.consisting of or characterized by binomials.