单词 | vitamin A2 |
释义 | vitamin A2 (extremely rare) n WORD FAMILY vitamin A2 n a viscous alcohol that is less active in mammals than is vitamin A1 Syn|Hyper dehydroretinol A, antiophthalmic factor, axerophthol, vitamin A any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes |
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