/ Dictionary / Index W waterweed: Meaning and Definition of Find definitions for: wa•ter•weed Pronunciation: (wô'tur-wēd", wot'ur-), [key] — n. elodea. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: waterweed (Thesaurus) waterway plank waterwheel Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language