PITCHBLENDE - Definition

Pronunciation:		'pich`blend
WordNet Dictionary

	Definition:	[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

	Synonyms:	uraninite

	See Also:	atomic number 92, mineral, U, uranium, uranium ore

Webster's 1913 Dictionary

	Definition:	\Pitch"blende`\, n. [1st pitch + blende.] (Min.) A pitch-black mineral consisting chiefly of the oxide of uranium; uraninite. See {Uraninite}.