ossifying
  骨化的
  Os·si·fy v. t. [imp. & p. p. Ossified p. pr. & vb. n. Ossifying ]
  1. Physiol. To form into bone; to change from a soft animal substance into bone, as by the deposition of lime salts.
  2. (Fig.): To harden; as, to ossify the heart.
  Os·si·fy·ing a. Physiol. Changing into bone; becoming bone; as, the ossifying process.
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