The Collaborative International Dictionary
Petrifactive
Petrifactive \Pet`ri*fac"tive\, a.
Having the quality of converting organic matter into stone; petrifying.
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Pertaining to, or characterized by, petrifaction.
The . . . petrifactive mutations of hard bodies.
--Sir T. Browne.
Wiktionary
petrifactive
a. 1 Having the quality of converting organic matter into stone; petrifying. 2 Pertaining to, or characterized by, petrifaction.