Word Study
lapidescent
CIDE DICTIONARY
lapidescent, a. [L. lapidescens, p. pr. of lapidescere to become stone, fr. lapis, -idis, stone: cf. F. lapidescent.].
Undergoing the process of becoming stone; having the capacity of being converted into stone; having the quality of petrifying bodies. [1913 Webster]
lapidescent, n.
Any substance which has the quality of petrifying other bodies, or of converting or being converted into stone. [1913 Webster]
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