/ Dictionary / Index L lithostratigraphy: Meaning and Definition of Find definitions for: lith•o•stra•tig•ra•phy Pronunciation: (lith"ō-stru-tig'ru-fē), [key] — n. the study or character of stratified rocks based solely on their physical and petrographic features. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lithosphere lithotomy Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language