/ Dictionary / Index S stratigraphy: Meaning and Definition of Find definitions for: stra•tig•ra•phy Pronunciation: (stru-tig'ru-fē), [key] — n. a branch of geology dealing with the classification, nomenclature, correlation, and interpretation of stratified rocks. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: stratigraphy (Thesaurus) stratig. strato- Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language