A radioactive isotope (cf. radionuclide n. at radio-, comb._form2 affix 2). Also: a chemical containing a radioisotope, a radiochemical.
| 单词 | θ79621 |
| 释义 | the world > matter > physics > atomic nucleus > radioactive isotope > [noun] (8) radioisotope1938 A radioactive isotope (cf. radionuclide n. at radio-, comb._form2 affix 2). Also: a chemical containing a radioisotope, a radiochemical. Subcategories:— activity in relation to mass (1) — difference in wavelength (1) — instrument for separating (1) — heavy isotope of hydrogen (2) — heavy water (2) |
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