/ Dictionary / Index L lithification: Meaning and Definition of Find definitions for: lith•i•fi•ca•tion Pronunciation: (lith"u-fi-kā'shun), [key] — n. Geol. the process or processes by which unconsolidated materials are converted into coherent solid rock, as by compaction or cementation. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lithic lithify Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language