Definition of sweepage:
(n) :
Detritus that is swept up with a broom or similar implement.
(n) :
The act of sweeping or flowing.
(n) :
(UK, dialect) The crop of hay obtained from a meadow.
(n) :
The process by which gases passing beneath the electrodes of an electrostatic precipitator pick up dust from the hoppers, removing it from the precipitator exit.
(n) :
The movement of matter by a current.
(n) :
The matter that has been moved by a current.