1. a nuclear reactor that uses water as a coolant and moderator; the water boils in the reactor core and the steam produced can drive a steam turbine; [syn: boiling water reactor, BWR]
WordNet (r) 3.0 (2006):
boiling water reactor
n 1: a nuclear reactor that uses water as a coolant and
moderator; the water boils in the reactor core and the
steam produced can drive a steam turbine [syn: boiling
water reactor, BWR]