thymol

noun

: a crystalline phenol C10H14O of aromatic odor and antiseptic properties found especially in thyme oil or made synthetically and used chiefly as a fungicide and preservative

Examples of thymol in a Sentence

Recent Examples on the Web
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Eco-Safe uses a hospital-grade sanitizer to ensure cleanliness; the brand also offers a natural alternative that’s made of thymol. Julianna Chen, Dallas Morning News, 10 Mar. 2026 The presence of the virus in the mouth or saliva will trigger this reaction, release thymol (a flavor compound) and produce a strong taste. Angelica Stabile, FOXNews.com, 7 Oct. 2025 In lab tests of vials with human saliva from people diagnosed with the flu, the sensor released pure thymol within 30 minutes. Hannah Millington, MSNBC Newsweek, 2 Oct. 2025 In tests conducted so far, the sensor has successfully released thymol within 30 minutes of being placed in vials of saliva obtained from people infected with influenza. New Atlas, 1 Oct. 2025

Word History

Etymology

International Scientific Vocabulary, from Latin thymum thyme

First Known Use

1857, in the meaning defined above

Time Traveler
The first known use of thymol was in 1857

Browse Nearby Words

Cite this Entry

“Thymol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thymol. Accessed 5 Jul. 2026.

Medical Definition

thymol

noun
: a crystalline phenol C10H14O of aromatic odor and antiseptic properties found especially in thyme oil or made synthetically and used chiefly as a fungicide and preservative

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