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Meaning of lithification

lith•i•fi•ca•tion

Pronunciation: (lith"u-fi-kā'shun), [key]
— n. Geol.
  1. 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.