Calcification
WordNet
noun
(1) A process that impregnates something with calcium (or calcium salts)
(2) An inflexible and unchanging state
"The calcification of negotiations"
(3) Tissue hardened by deposition of lime salts
WiktionaryText
Noun
- The process of change into a stony or calcareous substance by the deposition of lime salt; -- normally, as in the formation of bone and of teeth; abnormally, as in calcareous degeneration of tissue.