Breadcrumb Home > Thesaurus > F Synonyms of flaxseed Find synonyms for: Noun1. linseed, flaxseed, oilseed, oil-rich seedusage: the seed of flax used as a source of oilWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of flaxseed (Dictionary) ✖ Related Content Daily Word Quiz: deracinate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language