/ Thesaurus / H Synonyms of hydrilla verticillata Find synonyms for: Noun1. hydrilla, Hydrilla verticillata, aquatic plant, water plant, hydrophyte, hydrophytic plantusage: submersed plant with whorled lanceolate leaves and solitary axillary flowers; Old World plant naturalized in southern United States and clogging Florida's waterwaysWordNet 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