/ Thesaurus / F Synonyms of family potamogetonaceae Find synonyms for: Noun1. Potamogetonaceae, family Potamogetonaceae, pondweed family, monocot family, liliopsid familyusage: plants that grow in ponds and slow streams; sometimes includes family ZosteraceaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language