calcification
石灰化
cal·ci·fi·ca·tion /ˌkælsəfəˈkeʃən/ 名詞
鈣化,骨化
Cal·ci·fi·ca·tion n. Physiol. 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.
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calcification
n 1: a process that impregnates something with calcium (or
calcium salts)
2: tissue hardened by deposition of lime salts
3: an inflexible and unchanging state; "the calcification of
negotiations"