Defn: Conciseness of expression; brevity.

BRACHYPINACOID
Brach`y*pin"a*coid, n. Etym: [Gr. pinacoid.] (Crytallog.)

Defn: A plane of an orthorhombic crystal which is parallel both to the vertical axis and to the shorter lateral (brachydiagonal) axis.

BRACHYPTERA
Bra*chyp"te*ra, n. pl. Etym: [NL., fr. Gr. (Zoöl.)

Defn: A group of Coleoptera having short wings; the rove beetles.

BRACHYPTERES
Bra*chyp"te*res, n.pl. Etym: [NL. See Brachyptera. ] (Zoöl.)

Defn: A group of birds, including auks, divers, and penguins.

BRACHYPTEROUS
Bra*chyp"ter*ous, a. Etym: [Gr. brachyptère.] (Zoöl.)

Defn: Having short wings.

BRACHYSTOCHRONE Bra*chys"to*chrone, n. Etym: [Incorrect for brachistochrone, fr. Gr. brachistochrone. ] (Math.)