高こう速そく増ぞう殖しょく炉ろMeaningsNoun1. fast-breeder reactorKanji used高high速fast増increase殖reproduce and multiply炉furnacePitch accentこうそくぞうしょくろComposed of高こう速そくhigh-speed; rapid; express; highway; freeway; expressway; motorwayNa-adjective増ぞう殖しょくincrease; multiplication; propagation; proliferationNoun炉ろhearth; fireplace; furnace; kilnNoun