軽けい水すい炉ろ

noun

light-water reactor

Technical term in nuclear engineering; a reactor that uses ordinary water as both coolant and moderator. Contrasts with 重水炉 (heavy-water reactor).

See also: 重水炉

• 日本にほんの原げん子し力りょく発はつ電でん所しょの多おおくは軽けい水すい炉ろを採さい用ようしている。

  Many nuclear power plants in Japan use light-water reactors.