The property or condition of being radioactive. Also: the radiation emitted by a radioactive material; such material itself in a dispersed form…
| 单词 | θ79498 |
| 释义 | the world > matter > physics > atomic nucleus > radioactivity > [noun] (23) radioactivity1899 The property or condition of being radioactive. Also: the radiation emitted by a radioactive material; such material itself in a dispersed form… Subcategories:— emission of radiation (1) — substance in colloidal form (1) — radiation emitted (4) — unit of radioactivity (2) — atom with high energy (1) — area of high radioactivity (1) — atom produced during disintegration (1) — distinct kind of atom (1) — uranium (3) — method of food preservation (2) — tower for solvent extraction (2) — battery utilizing nuclear energy (1) — material reducing intensity of radiation (1) — decrease in radioactivity (1) |
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