/ Dictionary / Index S sea cabbage: Meaning and Definition of Find definitions for: sea' cab"bage Pronunciation: [key] a brown alga, Hedophyllum sessile, of the North Pacific, characterized by a compact mass of fronds resembling a cabbage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sea butterfly sea calf Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language