embouchure
Concise Oxford English Dictionary © 2008 Oxford University Press:
embouchure /ˌɒmbʊˈʃʊə/
▶noun
- 1 Music the way in which a player applies the mouth and tongue in playing a brass or wind instrument.
- 2 archaic the mouth of a river.
– origin C18: Fr., from s'emboucher, from emboucher ‘put in or to the mouth’.
'embouchure' also found in these Oxford entries:

