diagenesis: Meaning and Definition of

di•a•gen•e•sis

Pronunciation: (dī"u-jen'u-sis), [key]
— n. Geol.
  1. the physical and chemical changes occurring in sediments between the times of deposition and solidification.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.