Definisi 'pitchblende'

English to English
1 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 Terjemahkan
source: wordnet30

2 A pitch-black mineral consisting chiefly of the oxide of uranium; uraninite. See Uraninite. Terjemahkan
source: webster1913

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