PITCHBLENDE

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

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

Synonyms:

pitchblende; uraninite

Classified under:

Nouns denoting substances

Hypernyms ("pitchblende" is a kind of...):

uranium ore (any ore from which uranium can be extracted)

Meronyms (substance of "pitchblende"):

atomic number 92; U; uranium (a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons)

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