/ Dictionary / Index S superglacial: Meaning and Definition of Find definitions for: su•per•gla•cial Pronunciation: (s"pur-glā'shul), [key] — adj. on the surface of a glacier. believed to have been formerly on the surface of a glacier: superglacial debris. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. supergiant star Super glue Related Content Daily Word Quiz: menagerie Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language