- petrifaction, petrification - the process of turning some plant material into stone by infiltration with water carrying mineral particles without changing the original shape
--1 is a kind of fossilization, fossilisation
Derived form: verb petrify2 - petrifaction - a rock created by petrifaction; an organic object infiltrated with mineral matter and preserved in its original form
--2 is a kind of rock, stone
Derived form: verb petrify2