/ Thesaurus / H Synonyms of horse balm Find synonyms for: Noun1. horse balm, horseweed, stoneroot, stone-root, richweed, stone root, Collinsonia canadensis, herb, herbaceous plantusage: erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United StatesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language