/ Dictionary / Index S supercomputer: Meaning and Definition of Find definitions for: su•per•com•put•er Pronunciation: (s'pur-kum-py"tur, s"pur-kum-py'tur), [key] — n. a very fast, powerful mainframe computer, used in advanced military and scientific applications. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: supercomputer (Thesaurus) supercolumniation superconductivity Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language