The Collaborative International Dictionary
Lapidific
Lapidific \Lap`i*dif"ic\, Lapidifical \Lap`i*dif"ic*al\, a. [L. lapis, -idis, stone + facere to make: cf. F. lapidifique.] Forming or converting into stone.
Wiktionary
lapidific
a. Forming or converting into stone; petrifying.