Definitions

1. verb

to form or become stone or rock; to convert into a stone-like mass

“The process of lithification occurred over millions of years, turning the sediment into a solid rock.”

2. verb

to fossilize

“The ancient creature’s skeleton lithified over time, creating a valuable fossil.”

3. noun

the process of forming or becoming stone or rock

“The geologist studied the lithification of the sedimentary rock formation.”