Plutonium is a radioactive element used especially in nuclear weapons and as a fuel in nuclear power stations.
N-UNCOUNT
Plutonium is a radioactive element used especially in nuclear weapons and as a fuel in nuclear power stations.
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012