a pellet of radioactive material in a sealed capsule, used in radio-therapy and radiography.
| 单词 | θ13588 |
| 释义 | the world > health and disease > healing > diagnosis or prognosis > radiography or radiology > [noun] > equipment used in > capsule of radioactive material (1) sealed source1962 a pellet of radioactive material in a sealed capsule, used in radio-therapy and radiography. |
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