| 释义 |
calcification|ˌkælsɪfɪˈkeɪʃən|
[n. of action f. calcify (L. *calcific-āre); see prec. and -ation; cf. F. calcification.]
Conversion into lime; replacement of other matter by lime; the hardening of a structure, tissue, etc. by the deposit of salts of lime, as in the formation of teeth, and many forms of ‘petrifaction’.
1849–52Todd Cycl. Anat. & Phys. IV. 876/1 As calcification of the tooth progresses towards its base. 1854Woodward Mollusca ii. 229 The shells..differ from Rhynconella chiefly in the calcification of the oral supports.
b. concr. (the result of calcifying.)
1869Nicholson Zool. xxx. (1880) 289 A calcareous shell formed by calcifications within the walls of the first three cephalic segments. 1872― Palæont. 88 The sclerodermic coral..is an actual calcification of part of the tissues of the polype. |