首页radonradon英英释意

radon

英 ['reɪdɒn] 美['redɑn]
  • n. [化学] 氡(元素符号Rn)
  • n. (Radon)人名;(法、塞)拉东

英英释意


1. a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health