/ Dictionary / Index S synchronous: Meaning and Definition of Find definitions for: syn•chro•nous Pronunciation: (sing'kru-nus), [key] — adj. occurring at the same time; coinciding in time; contemporaneous; simultaneous. going on at the same rate and exactly together; recurring together. having the same frequency and zero phase difference. of, pertaining to, or operating using fixed-time intervals controlled by a clock (opposed to asynchronous). geostationary. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: synchronous (Thesaurus) synchronoscope synchronous converter Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language