Comminution is the reduction of solid materials from one average particle size to a smaller average particle size, by , , , , or other processes. In
geology, it occurs naturally during
faulting in the upper part of the Earth's
crust. In
industry, it is an important
unit operation in
mineral processing,
ceramics,
electronics, and other fields, accomplished with many types of
mill. In
dentistry, it is the result of
mastication of food. In general medicine, it is one of the most traumatic forms of
bone fracture.
