Definition of Vitamin A1

1. Noun. An unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene.

Exact synonyms: Retinol
Generic synonyms: A, Antiophthalmic Factor, Axerophthol, Vitamin A

Medical Definition of Vitamin A1

1. Vitamin A1alcohol; 2,6,6-trimethyl-1-(9'-hydroxy-3',7'-dimethylnona-1',3',5',7'-tetraenyl)cyclohex-1-ene;a half-carotene bearing the b (or beta-ionone) form of the cyclic end group and a CH2OH at the C-15 position (numbering as in carotenoids) or 9'-position (numbering as a nonyl side chain on a cyclohexene ring); an intermediate in the vision cycle, it also plays a role in growth and differentiation. See: dehydroretinol. Synonym: vitamin A1 alcohol, vitamin A1. Retinol dehydrogenase, an oxidoreductase catalyzing interconversion of retinal and NADH to retinol and NAD+. (05 Mar 2000)

Lexicographical Neighbors of Vitamin A1

vitalizer
vitalizers
vitalizes
vitalizing
vitallium
vitally
vitalness
vitalnesses
vitalometer
vitals
vitamer
vitamers
vitamin
vitamin-deficiency diet
vitamin A
vitamin A1 (current term)
vitamin A1 acid
vitamin A1 alcohol
vitamin A2
vitamin A2 aldehyde
vitamin A acid
vitamin A aldehyde
vitamin A unit
vitamin B
vitamin B1
vitamin B12
vitamin B12 absorption test
vitamin B12 deficiency
vitamin B12 neuropathy
vitamin B12 with intrinsic factor concentrate

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