embouchure
noun
[ ˌɒmbʊˈʃʊə ]
• the way in which a player applies their mouth to the mouthpiece of a brass or wind instrument, especially as it affects the production of the sound.
• the mouth of a river or valley.
Origin:
mid 18th century: French, from s'emboucher ‘discharge itself by the mouth’, from emboucher ‘put in or to the mouth’, from em- ‘into’ + bouche ‘mouth’.
