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单词 uranic
释义

WordReference Random House Unabridged Dictionary of American English © 2024
u•ran•ic1  (yŏŏ ranik),USA pronunciation adj. [Chem.]
  1. Chemistryof or containing uranium, esp. in the tetravalent state.
  2. Chemistrycontaining uranium in a valence state higher than the corresponding uranous compound.
  • uran(ium) + -ic 1830–40

u•ran•ic2  (yŏŏ ranik),USA pronunciation adj. 
  1. of or pertaining to the heavens;
    astronomical:uranic principles.
  • Greek ouran(ós) heaven + -ic
  • 1855–60

WordReference Random House Learner's Dictionary of American English © 2024
u•ra•ni•um /yʊˈreɪniəm/USA pronunciation   n. [uncountable]
  1. Chemistrya white, shining, radioactive, metallic element, used in atomic and hydrogen bombs and as a fuel in nuclear reactors.
u•ran•ic /yʊˈrænɪk/USA pronunciation  adj. 

WordReference Random House Unabridged Dictionary of American English © 2024
u•ra•ni•um  (yŏŏ rānē əm),USA pronunciation n. [Chem.]
  1. Chemistrya white, lustrous, radioactive, metallic element, occurring in pitchblende, and having compounds that are used in photography and in coloring glass. The 235 isotope is used in atomic and hydrogen bombs and as a fuel in nuclear reactors. Symbol: U;
    at. wt.: 238.03;
    at. no.: 92;
    sp. gr.: 19.07.
  • Neo-Latin; see Uranus, -ium
  • 1790–1800

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