: a usually antiseptic liquid preparation for cleaning the mouth and teeth or freshening the breath
First Known Use of MOUTHWASH
Rhymes with MOUTHWASH
mouth·wash noun \ˈmau̇th-ˌwȯsh, -ˌwäsh\ (Medical Dictionary)
: a liquid preparation (as an antiseptic solution) for cleansing the mouth and teeth—called also collutorium
Learn More About MOUTHWASH
Seen & Heard
What made you want to look up mouthwash? Please tell us where you read or heard it (including the quote, if possible).