/ Thesaurus / V Synonyms of vitamin p Find synonyms for: Noun1. vitamin P, bioflavinoid, citrin, water-soluble vitaminusage: a vitamin that maintains the resistance of cell and capillary walls to permeationWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language