SG Heritage Dictionary

Calcify [Verb intransitive] Webster's Dictionary 1913

To become changed into a stony or calcareous condition, in which lime is a principal ingredient, as in the formation of teeth.

Calcify [Verb transitive] Webster's Dictionary 1913

To make stony or calcareous by the deposit or secretion of salts of lime.

Calcifying [Present participle and verbal noun] Webster's Dictionary 1913