Dictionary

mouthwash

noun mouth·wash \ˈmath-ˌwsh, -ˌwäsh\

: a liquid that is used to clean your mouth and teeth and to make your breath smell better

Full Definition of MOUTHWASH

:  a usually antiseptic liquid preparation for cleaning the mouth and teeth or freshening the breath

First Known Use of MOUTHWASH

1840
Medical Dictionary

mouthwash

noun mouth·wash \ˈmath-ˌwsh, -ˌwäsh\

Medical Definition of MOUTHWASH

:  a liquid preparation (as an antiseptic solution) for cleansing the mouth and teeth—called also collutorium

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