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单词 uraninite
释义

WordReference Random House Unabridged Dictionary of American English © 2024
u•ran•i•nite  (yŏŏ ranə nīt′, -rānə-),USA pronunciation n. 
  1. Mineralogya 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.
  • uran(ium) + -in2 + -ite1 1875–80

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