methylxanthine
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meth·yl·xan·thine

noun \-ˈzan-ˌthēn\

Definition of METHYLXANTHINE

: a methylated xanthine derivative (as caffeine, theobromine, or theophylline)

First Known Use of METHYLXANTHINE

1949

meth·yl·xan·thine

noun \ˌmeth-əl-ˈzan-ˌthēn\   (Medical Dictionary)

Medical Definition of METHYLXANTHINE

: a methylated xanthine derivative (as caffeine, theobromine, or theophylline)

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