Embouchure, n.

(ŏng'boo-shūr'), n. [Fr. See EM-BOGUING.]

1. A mouth, aperture, or opening, as of a river, cannon, and the like.
2. (Mus.) (a.) The mouth-piece of a wind-instrument. (b.) The shaping of the lips to the mouth-piece; as, a flute-player has a good embouchure.