power plant

or pow·er·plant

noun
  1. a plant, including engines, dynamos, etc., and the building or buildings necessary for the generation of power, as electric or nuclear power.
  2. the machinery for supplying power for a particular mechanical process or operation.
  3. the engine, motor, or other power source along with related ignition, transmission, etc., components of a vehicle, aircraft, machine, etc.

Origin of power plant

First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for powerplant

power plant

noun
  1. the complex, including machinery, associated equipment, and the structure housing it, that is used in the generation of power, esp electrical power
  2. the equipment supplying power to a particular machine or for a particular operation or process
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012