/ Dictionary / Index S supercontinent: Meaning and Definition of Find definitions for: su•per•con•ti•nent Pronunciation: (s"pur-kon'tn-unt), [key] — n. Geol. a hypothetical protocontinent of the remote geologic past that rifted apart to form the continents of today. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. superconductivity supercool Related Content Daily Word Quiz: sylvan Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language