a unit of radioactivity, corresponding to 3.7 × 1010 disintegrations per second 居里(放射性强度单位,相当于每秒发生3.7 × 1010次裂变) ■the quantity of radioactive substance that has this amount of activity 居里(有这种运动量的放射性物质的量)
语源
early 20th cent.: named after Pierre and Marie Curie