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首页英语词典radonradon英英释意

radon

英 ['reɪdɒn] 美['redɑn]

英英释义实用场景例句

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