mouthwash

noun

mouth·​wash ˈmau̇th-ˌwȯsh How to pronounce mouthwash (audio)
-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 In that case, using whitening toothpaste (like the Boka Teeth Whitening n-Ha Toothpaste or Marvis Whitening Toothpaste), mouthwash, and over-the-counter teeth whitening devices can help fight against your habit at home. India Espy-Jones, Essence, 15 May 2024 In nearly all commercial products, from at-home strips to mouthwashes, the key ingredient is hydrogen peroxide, which is generally safe but should be used with a few caveats. San Diego Union-Tribune, 14 May 2024 See all Example Sentences for mouthwash 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'mouthwash.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1840, in the meaning defined above

Time Traveler
The first known use of mouthwash was in 1840

Dictionary Entries Near mouthwash

Cite this Entry

“Mouthwash.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mouthwash. Accessed 28 May. 2024.

Kids Definition

mouthwash

noun
mouth·​wash ˈmau̇th-ˌwȯsh How to pronounce mouthwash (audio)
-ˌwäsh
: a liquid that usually kills germs and is used to clean the mouth and teeth and freshen the breath

Medical Definition

mouthwash

noun
: a liquid preparation (as an antiseptic solution) for cleansing the mouth and teeth

called also collutorium

More from Merriam-Webster on mouthwash

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