Os"si*fy (?), v. t. [imp. & p. p. Ossified (?); p. pr. & vb. n. Ossifying (?).] [L. os, ossis, bone + -fy: cf. F. ossifier. See Osseous.]

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.

Ruskin.

© Webster 1913.

Os"si*fy, v. i. Physiol.

To become bone; to change from a soft tissue to a hard bony tissue.

© Webster 1913.