/ Thesaurus / P Synonyms of poterium Find synonyms for: Noun1. Poterium, genus Poterium, rosid dicot genususage: a genus of thorny herbs or shrubs of the family RosaceaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: respite Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language