petrification

noun

Same as petrifaction.

noun

Obduracy; callousness.

noun

See petrifaction.

noun

Fig.: Obduracy; callousness.

noun

the process of replacing the organic residues of plants (and animals) with insoluble salts, the original shape and topography being retained

noun

obduracy; callousness

noun

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