/ Dictionary / Index S sun star: Meaning and Definition of Find definitions for: sun' star" Pronunciation: [key] any starfish of the genus Solaster, inhabiting cold and temperate waters off both U.S. coasts. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sunspot number sunstone Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language