vitamin A

n.

1.

any of several related fat-soluble vitamins (such as retinol) essential for normal vision; it also prevents night blindness or inflammation or dryness of the eyes.

Noun

1.

vitamin A - any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes Synonyms: antiophthalmic factor, axerophthol, A

A, antiophthalmic factor, axerophthol, dehydroretinol, fat-soluble vitamin, retinol, vitamin A1, vitamin A2