retinol(redirected from Vitamin A deficiency)
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ret·i·nol(rĕt′n-ôl′, -ōl′, -ŏl′)
See vitamin A1.
1. (Elements & Compounds) another name for vitamin A2
2. (Elements & Compounds) another name for rosin oil
[C19: from Greek rhētinē resin + -ol1]
a yellow, fat-soluble terpene alcohol, C20H30O, obtained from carotene and occurring in green and yellow vegetables, egg yolk, etc.: essential to the protection of epithelial tissue and the prevention of night blindness. Also called vitamin A1, retinol.
a yellow oil, C20H28O, similar to vitamin A, obtained from fish liver.
See vitamin A.
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|Noun||1.||retinol - an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene|
n. retinol, vitamina A1.