1. a process that impregnates something with calcium (or calcium salts)(Freq. 1) • Derivationally related forms: calcify • Hypernyms: chemical process, chemical change, chemical action • Hyponyms: ossification 2. tissue hardened by deposition of lime salts • Derivationally related forms: calcify • Hypernyms: hardening 3. an inflexible and unchanging state - the calcification of negotiations • Derivationally related forms: calcify • Hypernyms: inaction, inactivity, inactiveness