As nouns the difference between mouthpiece and nozzle
is that mouthpiece is a part of any device that functions in or near the mouth, especially while nozzle is a short tube, usually tapering, forming the vent of a hose or pipe.
mouthpiece
Noun
(
en noun)
A part of any device that functions in or near the mouth, especially:
# The part of a telephone that is held close to the mouth.
# The part of a wind instrument that is held in or against the mouth.
A spokesman who speaks on behalf of someone else.
(lb) A lawyer for the defense.
nozzle
English
Alternative forms
* (l)
* (l), (l) (obsolete)
Noun
(
en noun)
A short tube, usually tapering, forming the vent of a hose or pipe.
A short outlet or inlet pipe projecting from the end or side of a hollow vessel, as a steam-engine cylinder or a steam boiler.