Definition of petrifaction

• n. - The process of petrifying, or changing into stone; conversion of any organic matter (animal or vegetable) into stone, or a substance of stony hardness.
• n. - The state or condition of being petrified.
• n. - That which is petrified; popularly, a body incrusted with stony matter; an incrustation.
• n. - Fig.: Hardness; callousness; obduracy.