| Petrification 1. (n.) See Petrifaction. 2. (n.) Fig.: Obduracy; callousness. Thesaurus Entries ancient manuscript, antique, antiquity, archaism, arteriosclerosis, artifact, atherosclerosis, calcification, callusing, case hardening, cave painting, concretion, cornification, crystallization, eolith, firming, fossil, fossilization, granulation, hardening, hornification, induration, lapidification, lithification, mezzolith, microlith, neolith, ossification, paleolith, petrifaction, petrified forest, petrified wood, petroglyph, plateaulith, relic, reliquiae, remains, ruin, ruins, sclerosis, setting, solidification, steeling, stiffening, survival, tempering, toughening, vestige, vitrifaction, vitrification |