Learned a new word today:
embouchure |ämboō sh oŏr|
1 Music the way in which a player applies the mouth to the mouthpiece of a brass or wind instrument.
• the mouthpiece of a flute or a similar instrument.
2 archaic the mouth of a river or valley.
ORIGIN mid 18th cent.: French, from s’emboucher ‘discharge itself by the mouth,’ from emboucher ‘put in or to the mouth,’ from em- ‘into’ + bouche ‘mouth.’