Xanthine Definition

zănthēn, -thĭn
noun
A white, crystalline, nitrogenous compound, C5H4N4O2, resembling uric acid: it is present in blood, urine, and certain plants.
Webster's New World
Any of various derivatives of this compound.
Webster's New World
Any of various purines having two oxygen atoms attached to the six-member ring of carbon and nitrogen atoms. Xanthines include caffeine, theophylline (a toxic alkaloid found in tea leaves), and theobromine (a toxic alkaloid found in cocoa).
American Heritage Science

Other Word Forms of Xanthine

Noun

Singular:
xanthine
Plural:
xanthines

Origin of Xanthine

  • From French xanthine, ultimately from Ancient Greek ξανθός (xanthós), "yellow", because xanthine is yellowish-white.

    From Wiktionary

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xanthine