bi·no·mi·al 
(bī-nōmē-əl)
(bī-nōmē-əl)adj.
Consisting of or relating to two names or terms.
n.
1. Mathematics A polynomial with two terms.
2. Biology A taxonomic name in binomial nomenclature.
[From New Latin binōmius, having two names : BI-1 + French nom, name (from Latin nōmen; see NOMINAL).]
bi·nomi·al·ly adv.