noun

(1) The process of turning some plant material into stone by infiltration with water carrying mineral particles without changing the original shape,a rock created by petrifaction,an organic object infiltrated with mineral matter and preserved in its original form

(2) The process of turning some plant material into stone by infiltration with water carrying mineral particles without changing the original shape

(3) A rock created by petrifaction

(4) An organic object infiltrated with mineral matter and preserved in its original form