noun
pressurized water reactor; PWR
Technical term in nuclear engineering; a type of light-water reactor where water is kept under high pressure to prevent boiling.
加圧水型原子炉は、世界で最も多く使われている原子炉の形式です。
The pressurized water reactor is the most widely used type of nuclear reactor in the world.
A boiling water reactor (BWR) allows water to boil directly in the reactor core, unlike a PWR which keeps water under high pressure.
Compound of 加圧 (pressurization), 水 (water), 型 (type), and 原子炉 (nuclear reactor).