A 2
noundomain: substance
Princeton WordNet [ver.3.1]
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EnglishDefinition
any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
Hypernym
any vitamin that is soluble in fats
EnglishHyponym
vitamin A1 1
noun
an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene
vitamin A2 1
noun
a viscous alcohol that is less active in mammals than is vitamin A1
