cal·ci·fy /ˈkælsəˌfaɪ/
  (vi.)變成石灰質,鈣化(vt.)使成石灰
  cal·ci·fy /ˈkælsəˌfaɪ/ 動詞
  鈣化
  Cal·ci·fy v. t. [imp. & p. p. Calcified p. pr. & vb. n. Calcifying.]  To make stony or calcareous by the deposit or secretion of salts of lime.
  Cal·ci·fy, v. i. To become changed into a stony or calcareous condition, in which lime is a principal ingredient, as in the formation of teeth.
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  calcify
       v 1: become impregnated with calcium salts [ant: decalcify]
       2: become inflexible and unchanging; "Old folks can calcify"
       3: turn into lime; become calcified; "The rock calcified over
          the centuries"
       4: convert into lime; "the salts calcified the rock"
       [also: calcified]