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
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 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 Once an individual tastes thymol, the idea is that measures regarding isolation and further confirmation can be taken by anyone as soon as possible. Hannah Millington, MSNBC Newsweek, 2 Oct. 2025 In the sensor, the neuraminidase is bound to molecules of a phenolic compound called thymol, which is found in the herb thyme. New Atlas, 1 Oct. 2025 Additionally, the thymol in carom seeds has calcium channel-blocking effects.2 These effects are vasodilation (widening of blood vessels) of the coronary arteries and decreased systolic blood pressure. Lana Barhum, Verywell Health, 24 Oct. 2024 Kills Harmful Pathogens Interestingly, thymol is used in the mouthwash Listerine thanks to its antibacterial properties. Isabel Vasquez Rd Ldn, Health, 17 Oct. 2024

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 22 Oct. 2025.

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

More from Merriam-Webster on thymol

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!