vitamin a2
English Thesaurus
1. a viscous alcohol that is less active in mammals than is vitamin A1 (noun.substance)
| hypernym | : | a, antiophthalmic factor, axerophthol, vitamin a, |
| definition | : | any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes (noun.substance) |
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