/ Thesaurus / V Synonyms of vitamin a Find synonyms for: Noun1. vitamin A, antiophthalmic factor, axerophthol, A, fat-soluble vitaminusage: any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loquacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language