radon
radon 英 [ˈreɪdɒn] 美 [ˈreɪdɑn]
n. [化学] 氡（元素符号Rn）
名词复数:radons
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- n. [化学] 氡（元素符号Rn）
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1. radon and asbestos.
氡和石棉。
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2. What is radon?
氡是什么？
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3. To date, epidemiological studies have not found an association between radon in drinking water and cancer of the digestive and other systems.
迄今开展的流行病学研究未发现饮用水中的氡与消化系统及其它系统的癌症之间有联系。
- radon (n.) heaviest gaseous element, 1918, from German Radon, from radium (q.v.) + -on suffix of inert gases. The element was identified in radioactive decay of radium. Alternative name niton (from Latin nitens "shining") gained currency in France and Germany.
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