/ Dictionary / Index S supercool: Meaning and Definition of Find definitions for: su•per•cool Pronunciation: (s"pur-kl'), [key] — v.t. to cool (a liquid) below its freezing point without producing solidification or crystallization; undercool. —v.i. to become supercooled. —adj. very cool in temperature, esp. of the maximum coolness possible: used as a setting on air conditioners. very cool; very sophisticated, up-to-date, unemotional, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. supercontinent supercrat 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