xanthine /'zænθi:n/ 📖 中文释义 n. 黄质, 黄嘌呤[化] 黄嘌呤 🧩 词形变化 复数 xanthines 📘 English Definition(英文释义) n. crystalline oxidation product of the metabolism of nucleoproteins; precursor of uric acid; found in many organs and in urine ← xanthin X 字母词表 xanthine bases →