/ Thesaurus / H Synonyms of hedeoma pulegioides Find synonyms for: Noun1. pennyroyal, American pennyroyal, Hedeoma pulegioides, herb, herbaceous plantusage: erect hairy branching American herb having purple-blue flowers; yields an essential oil used as an insect repellent and sometimes in folk medicineWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language