/ Thesaurus / O Synonyms of omega 3 Find synonyms for: Noun1. omega-3 fatty acid, omega-3, polyunsaturated fatty acidusage: a polyunsaturated fatty acid whose carbon chain has its first double valence bond three carbons from the beginningWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language