/ Dictionary / Index S stratus: Meaning and Definition of Find definitions for: stra•tus Pronunciation: (strā'tus, strat'us), [key] — pl. stra•ti a cloud of a class characterized by a gray, horizontal layer with a uniform base, found at a lower altitude than altostratus, usually below 8000 feet (2400 m). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: stratus (Thesaurus) stratum Straus Related Content Daily Word Quiz: coincidence Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language