noun
fast-breeder reactor
Technical term in nuclear engineering; refers to a reactor that produces more fissile material than it consumes.
高速増殖炉は、使用済み核燃料を再利用できる技術として研究されている。
Fast-breeder reactors are being researched as a technology that can reuse spent nuclear fuel.
原子炉 is a general term for nuclear reactor, while 高速増殖炉 specifically refers to a fast-breeder type.
Compound of 高速 (high-speed) + 増殖 (breeding, multiplication) + 炉 (reactor). A direct translation of the English term 'fast-breeder reactor'.