嘧啶 mìdìng pyrimidine Definitions Defs Origin Strokes Stroke Words Sentences Sents 嘧 mì pyrimidine Components 口 口 Meaning component kǒu, kou mouth mouth 密 密 Sound component mì secret Sources Readings & variants Unicode 啶 dìng phonetic used in pyridine and pyrimidine Components 口 口 Meaning component kǒu, kou mouth mouth 定 定 Sound component dìng settle Sources Readings & variants Unicode