mouthwash
noun
mouth·wash
ˈmau̇th-ˌwȯsh 
-ˌwäsh
: a usually antiseptic liquid preparation for cleaning the mouth and teeth or freshening the breath
Examples of mouthwash in a Sentence
Recent Examples on the Web
Some social media users claim that mouthwash can raise blood pressure.
—
Laura Bradley, Health, 3 June 2026
The Truth Behind the Mouthwash-Washing Machine Cleaning Trick Conflicting opinions abound regarding the safety and efficacy of using mouthwash as a washing machine cleaner and disinfectant.
—Louise Parks, Martha Stewart, 27 May 2026
The doctor prescribed her steroid mouthwash and oral steroids, but dismissed her request for a biopsy.
—Charna Flam, PEOPLE, 16 May 2026
Other methods for deep cleaning a garbage disposal include using baking soda and vinegar, mouthwash, or a mild chlorine bleach solution.
—Jolie Kerr, Better Homes & Gardens, 7 May 2026
See All Example Sentences for mouthwash
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Laura Bradley, Health, 3 June 2026
The Truth Behind the Mouthwash-Washing Machine Cleaning Trick Conflicting opinions abound regarding the safety and efficacy of using mouthwash as a washing machine cleaner and disinfectant.
—Louise Parks, Martha Stewart, 27 May 2026
The doctor prescribed her steroid mouthwash and oral steroids, but dismissed her request for a biopsy.
—Charna Flam, PEOPLE, 16 May 2026
Other methods for deep cleaning a garbage disposal include using baking soda and vinegar, mouthwash, or a mild chlorine bleach solution.
—Jolie Kerr, Better Homes & Gardens, 7 May 2026
See All Example Sentences for mouthwash
Cite this Entry
“Mouthwash.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mouthwash. Accessed 14 Jun. 2026.
Copy CitationKids Definition
mouthwash
noun
mouth·wash
ˈmau̇th-ˌwȯsh
-ˌwäsh
: a liquid that usually kills germs and is used to clean the mouth and teeth and freshen the breath
Medical Definition
mouthwash
noun
mouth·wash
ˈmau̇th-ˌwȯsh, -ˌwäsh
: a liquid preparation (as an antiseptic solution) for cleansing the mouth and teeth
called also collutorium
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