/ Dictionary / Index R rockweed: Meaning and Definition of Find definitions for: rock•weed Pronunciation: (rok'wēd"), [key] — n. a fucoid seaweed growing on rocks exposed at low tide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rockweed (Thesaurus) rock wallaby Rockwell Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language