Definition of pressurized-water reactor in English:

pressurized-water reactor

(also PWR)


  • A nuclear reactor in which the fuel is uranium oxide clad in zircaloy and the coolant and moderator is water at high pressure so that it does not boil at the operating temperature of the reactor.

    • ‘However, taking as an example one type of spent pressurized-water reactor fuel, typical cooling rates for the rock adjacent to the container can be calculated.’