ピコキュリーピコキュリーMeanings1nounpicocurieA unit of radioactivity equal to one trillionth of a curie. Used in scientific and technical contexts.この水みずのラドン濃のう度どは1リットルあたり数すうピコキュリーです。The radon concentration in this water is a few picocuries per liter.
