| 单词 | barium |
| 释义 | barium n. Chem. a white reactive soft metallic element of the alkaline earth group. Usage Symb.: Ba. Phrases and idioms barium meal a mixture of barium sulphate and water, which is opaque to X-rays, and is given to patients requiring radiological examination of the stomach and intestines. Etymology: BARYTA + -IUM |
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