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pitchblende |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Pitchblende \Pitch"blende`\, n. [1st pitch + blende.] (Min.) A pitch-black mineral consisting chiefly of the oxide of uranium; uraninite. See {Uraninite}. From WordNet r 1.6 [wn]: pitchblende n : a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore [syn: {uraninite}]
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