单词 | iodine-131 |
释义 | iodine-131 [`ī·ǝ´dīn ¦wǝn¦thǝrd·ē`wǝn] NUCLEAR PHYSICS A radioactive, artificial isotope of iodine, mass number 131; its half-life is 8 days with beta and gamma radiation; used in medical and industrial radioactive tracer work; moderately radiotoxic. |
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