embouchure

[ ahm-boo-shoo r, ahm-boo-shoo r; French ahn-boo-shyr ]
/ ˌɑm bʊˈʃʊər, ˈɑm bʊˌʃʊər; French ɑ̃ buˈʃür /

noun, plural em·bou·chures [ahm-boo-shoo rz; ahm-boo-shoo rz; French ahn-boo-shyr] /ˌɑm bʊˈʃʊərz; ˈɑm bʊˌʃʊərz; French ɑ̃ buˈʃür/.

the mouth of a river.
the opening out of a valley into a plain.
Music.
  1. the mouthpiece of a wind instrument.
  2. the adjustment of a player's mouth to such a mouthpiece.

Origin of embouchure

1750–60; < French, equivalent to embouch(er) to put (an instrument) to one's mouth (em- em-1 + bouche mouth < Latin bucca puffed cheek) + -ure -ure
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for embouchure

embouchure

/ (ˌɒmbʊˈʃʊə) /

noun

the mouth of a river or valley
music
  1. the correct application of the lips and tongue in playing a wind instrument
  2. the mouthpiece of a wind instrument

Word Origin for embouchure

C18: from French, from Old French emboucher to put to one's mouth, from bouche mouth, from Latin bucca cheek
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012