metamorphism
meta.mor.phism \-'mo.r-.fiz-*m\ n 1: METAMORPHOSIS 2: a change in the constitution of rock; specif : a pronounced chan ge effected by pressure, heat, and water that results in a more compact and more highly crystalline condition
Webster's English Dictionarymeta.mor.phism \-'mo.r-.fiz-*m\ n 1: METAMORPHOSIS 2: a change in the constitution of rock; specif : a pronounced chan ge effected by pressure, heat, and water that results in a more compact and more highly crystalline condition