Definition of: b, B

(bē) noun plural b′s, B′s or, Bs, bs, bees (bēz)
1. The second letter of the English alphabet: from Phoenician beth, through Greek beta, Roman B.
2. The sound of the letter b, the voiced bilabial stop. See ALPHABET
—symbol
1. Music a One of a series of tones, the seventh in the natural diatonic scale of C. b The pitch of this tone or the written note representing it. c A scale built upon B.
2. Chem. Boron (symbol B).