Moral roughness; roughness of manner; severity; crabbedness; harshness; -- opposed to mildness.
The roughness of the film surface, usually expressed in microns (one micron is one millionth of a meter) or micro inches (one micro inch is one millionth of an inch).
A term used in wear technology or tribology to describe a peak or projection from a surface.
Asperity implies the inequality or roughness of the surface of any body, whereby some parts of it stick out beyond the rest, increasing the surface friction of any object moving over it. This stands opposed to smoothness or polish. Most theories for explaining friction rely on a description of the behaviour of surface asperities.
