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单词 radioactivity
释义
N21302431radioactivitySpoken.105Fiction.39Magazine.100Newspaper.61Academic.126

radioactivity

/ˌreɪdɪəʊækˈtɪvətɪ/
noun
mass noun
1
the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei
放射性; 放射现象。
1.1
radioactive substances, or the radiation emitted by these
放射物(或其辐射)。
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更新时间:2025/8/20 16:14:02