methylxanthine

noun

meth·​yl·​xan·​thine ˌme-thəl-ˈzan-ˌthēn How to pronounce methylxanthine (audio)
: a methylated xanthine derivative (such as caffeine, theobromine, or theophylline)

Examples of methylxanthine in a Sentence

Recent Examples on the Web
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The shells contain two chemical compounds called methylxanthines that are also found in chocolate — theobromine and caffeine. Tim Johnson, Chicago Tribune, 14 May 2023 Most of us are familiar with the most talked about methylxanthine — caffeine. Adele Jackson-Gibson, Good Housekeeping, 1 Nov. 2022

Word History

First Known Use

1949, in the meaning defined above

Time Traveler
The first known use of methylxanthine was in 1949

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Cite this Entry

“Methylxanthine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/methylxanthine. Accessed 21 Nov. 2024.

Medical Definition

methylxanthine

noun
meth·​yl·​xan·​thine ˌmeth-əl-ˈzan-ˌthēn How to pronounce methylxanthine (audio)
: a methylated xanthine derivative (as caffeine, theobromine, or theophylline)

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