the mouth of a river.
the opening out of a valley into a plain.
the mouthpiece of a wind instrument.
the adjustment of a player's mouth to such a mouthpiece.
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How to use embouchure in a sentence
The distance from Chepstow to the embouchure of the Wye about three miles.The Wye and Its Associations | Leitch Ritchie
From this point to the embouchure its course lies through delightful scenery.
Probably, according to Teulet, the present Sandhoferfahrt, a little below the embouchure of the Neckar.Collected Essays, Volume V | T. H. Huxley
It had shoals off its embouchure; and these, he rightly enough fancied, would induce Captain Cuffe to be wary.The Wing-and-Wing | J. Fenimore Cooper
Amber lies under, or is formed upon the sand, and abounds most near the embouchure of a small river in this neighbourhood.
British Dictionary definitions for embouchure
the mouth of a river or valley
the correct application of the lips and tongue in playing a wind instrument
the mouthpiece of a wind instrument
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