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.
Os"si*fy, v. i. (Physiol.)
To become bone; to change from a soft tissue to a hard bony
tissue.