Meaning of CAVITATION in English
A condition in which a partial vacuum forms around the blades or impeller wheels of a pump , reducing the pump's output because part of the pump blades lose contact with the liquid. It can be a problem in fuel and water pump , fluid couplings , and torque converters . When severe, it can result in the erosion of the pump blades and other internal surfaces.
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012