promethium

美 [prə'mi:θiəm]
英 [prə'mi:θiəm]
  • n.钷(放射性化学元素)
  • 网络鉕;钜;烯土类元素
promethium
n.
1.
钷(放射性化学元素)a chemical element. Promethium is a radioactive metal that was first produced artificially in a nuclear reactor and is found in small amounts in nature.