Definition of Vitamin a

1. Noun. Any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes.

Exact synonyms: A, Antiophthalmic Factor, Axerophthol
Generic synonyms: Fat-soluble Vitamin
Specialized synonyms: Retinol, Vitamin A1, Dehydroretinol, Vitamin A2

Medical Definition of Vitamin a

1. Deficiency of this vitamin interferes with the production of rhodopsin in the eye resulting in night blindness and xerophthalmia. (27 Sep 1997)

Lexicographical Neighbors of Vitamin A

vital ultraviolet
vitamer
vitamer
vitamers
vitamin
vitamin
vitamin-deficiency diet
vitamine
vitamines
vitaminic
vitaminise
vitaminize
vitamins
vitamins
vitamin A
vitamin A
vitamin A1
vitamin A1
vitamin A1 acid
vitamin A1 alcohol
vitamin A2
vitamin A2
vitamin A2 aldehyde
vitamin A aldehyde
vitamin a deficiency
vitamin A unit
vitamin B
vitamin B
vitamin B1
vitamin B1

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