Lapidescent
Lapidescent , adjective
[Latin lapidescens, present participle of lapidescere to become stone, from lapis, -idis, stone: compare French lapidescent.]
Undergoing the process of becoming stone; having the capacity of being converted into stone; having the quality of petrifying bodies.
Lapidescent , noun
Any substance which has the quality of petrifying other bodies, or of converting or being converted into stone.