/ Thesaurus / V Synonyms of vitamin c Find synonyms for: Noun1. vitamin C, C, ascorbic acid, water-soluble vitamin, antioxidantusage: a vitamin found in fresh fruits (especially citrus fruits) and vegetables; prevents scurvyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rotund Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language