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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The toiletries were just as special and included Hermès soap, Le Labo shampoo and conditioner, Bulgari shower gel and lotion, and Aesop mouthwash. Catherine Garcia, theweek, 20 Dec. 2024 This can lead to bad breath that doesn't go away even with regular brushing and mouthwash. Sarah Hudgens, Health, 5 Oct. 2024 Or use mouthwash in between meals, instead, as Dr. Tsang mentioned above. Lisa Desantis, Glamour, 13 Dec. 2024 Once its benefits were proven, fluoride was also added to toothpaste and some mouthwashes. Erika Edwards, NBC News, 23 Nov. 2024 See all Example Sentences for mouthwash 

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 5 Jan. 2025.

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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