vitamin a1

English Thesaurus

1. an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene (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)