高こう速そく増ぞう殖しょく炉ろこうそくぞうしょくろMeanings1nounfast-breeder reactorTechnical term in nuclear engineering; refers to a reactor that produces more fissile material than it consumes.高こう速そく増ぞう殖しょく炉ろは、使し用よう済ずみ核かく燃ねん料りょうを再さい利