Mouthpiece - Definition

n 1: a part that goes over or into the mouth of a person; "the
mouthpiece of a respirator"
2: an acoustic device; the part of a telephone into which a
person speaks
3: a spokesperson (as a lawyer) [syn: mouthpiece, mouth]
4: (especially boxing) equipment that protects an athlete's
mouth [syn: mouthpiece, gumshield]
5: the tube of a pipe or cigarette holder that a smoker holds in
the mouth
6: the aperture of a wind instrument into which the player blows
directly [syn: mouthpiece, embouchure]