BIMASTISM
Bi*mas"tism, n. Etym: [Pref. bi- + Gr. breast.] (Anat.)

Defn: The condition of having two mammæ or teats.

BIMEDIAL
Bi*me"di*al, a. Etym: [Pref. bi- + medial.] (Geom.)

Defn: Applied to a line which is the sum of two lines commensurable only in power (as the side and diagonal of a square).

BIMEMBRAL
Bi*mem"bral, a. Etym: [L. bis twice + membrum member.] (Gram.)

Defn: Having two members; as, a bimembral sentence. J. W. Gibbs.

BIMENSAL
Bi*men"sal, a. Etym: [Pref. bi- + mensal.]

Defn: See Bimonthly, a. [Obs. or R.]

BIMESTRIAL
Bi*mes"tri*al, a. Etym: [L. bimestris; bis twice + mensis month.]

Defn: Continuing two months. [R.]