Pitchblende
Noun
1.
pitchblende
- 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
uraninite
atomic number 92
,
uranium
,
U
- a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
mineral
- solid homogeneous inorganic substances occurring in nature having a definite chemical composition
uranium ore
- any ore from which uranium can be extracted
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