/ Dictionary / Index S sea wasp: Meaning and Definition of Find definitions for: sea' wasp" Pronunciation: [key] any of various highly poisonous stinging jellyfishes of the order Cubomedusae, of tropical seas. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. seaware seawater Related Content Daily Word Quiz: quandary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language