PUMP


Meaning of PUMP in English

( n. )

An hydraulic machine, variously constructed, for raising or transferring fluids, consisting essentially of a moving piece or piston working in a hollow cylinder or other cavity, with valves properly placed for admitting or retaining the fluid as it is drawn or driven through them by the action of the piston.

Webster's Revised Unabridged English Dictionary.      Пересмотренный полный словарь английского языка Webster.