Kauri-butanol/KB value: measure of the aromatic properties of a solvent, based
on its power to dissolve kauri gum; aromatics have high KB values, paraffinic
solvents low KB values.
Kinetic/dynamic/sliding friction: the resistance to a force maintaining a relative
motion between two surfaces, sliding instead of rolling; varies with surface
conditions, surface materials, presence and type of lubricant (see friction).
Kinetic viscosity: value obtained by dividing the absolute viscosity of a fluid by
its mass density.