Bi*no"mi*al (&?;), n. [L. bis twice +
nomen name: cf. F. binome, LL. binomius (or fr. bi-
+ Gr. &?; distribution ?). Cf. Monomial.] (Alg.)
An expression consisting of two terms connected by the sign plus (+)
or minus (-); as, a + b, or 7 - 3.
Bi*no"mi*al, a. 1.
Consisting of two terms; pertaining to binomials; as, a
binomial root.
2. (Nat. Hist.) Having two names; -- used of
the system by which every animal and plant receives two names, the one
indicating the genus, the other the species, to which it belongs.
Binomial theorem (Alg.), the theorem which
expresses the law of formation of any power of a binomial.