The property of being rough, coarseness.
A measure of how rough something is, such as a surface
Abundance, especially of food.
Roughage; coarse fodder.
Something that is rough; a rough spot.
The state or fact of being turbulent or agitated; tempestuousness, disturbance.
Disturbance in a gas or fluid, characterized by evidence of internal motion or unrest.
Specifically, a state of agitation or disturbance in the air which is disruptive to an aircraft.
An instance or type of such state or disturbance.