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| xan·thine [ zán thn, zánthin ] (plural xan·thines) |
noun |
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| Definition: |
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1. crystalline compound: a yellow-white crystalline compound, the precursor of uric acid, found in blood, urine, and some plants. C5H4N4O2
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2. xanthine derivative: a derivative of xanthine, e.g. caffeine, theophylline, or theobromine
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