Mouthpiece Definition

mouthpēs
mouthpieces
noun
mouthpieces
A part placed at, or forming, a mouth.
The mouthpiece of a telephone, a pipe, a horse's bit, etc.
Webster's New World
The part of a musical instrument held in or to the mouth.
Webster's New World
A rubber or flexible plastic protective device worn over the teeth, as by boxers.
American Heritage
One, such as a spokesperson, through which views are expressed.
American Heritage
A person, periodical, etc. used by some other person or persons to express their views, ideas, etc.
Webster's New World

Other Word Forms of Mouthpiece

Noun

Singular:
mouthpiece
Plural:
mouthpieces

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mouthpiece