/ Thesaurus / L Synonyms of limnodium spongia Find synonyms for: Noun1. American frogbit, Limnodium spongia, aquatic plant, water plant, hydrophyte, hydrophytic plantusage: American plant with roundish heart-shaped or kidney-shaped leaves; usually rooted in muddy bottoms of ponds and ditchesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language