| 单词 | uraninite |
| 释义 | uraninite /yoo ran"euh nuyt', -ray"neuh-/, n. a mineral, probably originally uranium dioxide, UO2, but altered by radioactive decay, and usually containing uranium trioxide, lead, radium, and helium, occurring in several varieties, including pitchblende: the most important ore of uranium. [1875-80; URAN(IUM) + -IN2 + -ITE1] |
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