X x


    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [zan-theen, -thin]
    • /ˈzæn θin, -θɪn/
    • /zˈanθaɪn/
    • US Pronunciation
    • US IPA
    • [zan-theen, -thin]
    • /ˈzæn θin, -θɪn/

Definitions of xanthine word

  • noun xanthine a crystalline, nitrogenous compound, C 5 H 4 N 4 O 2 , related to uric acid, occurring in urine, blood, and certain animal and vegetable tissues. 1
  • noun xanthine any derivative of this compound. 1
  • noun xanthine A crystalline compound that is found in blood and urine and is an intermediate in the metabolic breakdown of nucleic acids to uric acid. 1
  • noun xanthine a crystalline compound related in structure to uric acid and found in urine, blood, certain plants, and certain animal tissues. Formula: C5H4N4O2 0
  • noun xanthine any substituted derivative of xanthine, esp one of the three pharmacologically active methylated xanthines, caffeine, theophylline, or theobromine, which act as stimulants and diuretics 0
  • noun xanthine a white, crystalline, nitrogenous compound, C5H4N4O2, resembling uric acid: it is present in blood, urine, and certain plants 0

Information block about the term

Origin of xanthine

First appearance:

before 1855
One of the 30% newest English words
From French, dating back to 1855-60; See origin at xantho-, -ine2

Historical Comparancy

Parts of speech for Xanthine


xanthine popularity

A common word. It’s meaning is known to most children of preschool age. About 71% of English native speakers know the meaning and use the word.
This word is included in each student's vocabulary. Most likely there is at least one movie with this word in the title.

Top questions with xanthine

  • what is xanthine?

See also

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