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Showing results for pitchblende. Search instead for entscheidende.

pitchblende

American  
[pich-blend] / ˈpɪtʃˌblɛnd /

noun

Mineralogy.
  1. a massive variety of uraninite, occurring in black pitchlike masses: a major ore of uranium and radium.


pitchblende British  
/ ˈpɪtʃˌblɛnd /

noun

  1. a blackish mineral that is a type of uraninite and occurs in veins, frequently associated with silver: the principal source of uranium and radium. Formula: UO 2

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

pitchblende Scientific  
/ pĭchblĕnd′ /
  1. A brown to black, often crusty, cubic mineral that is a principal ore of uranium. It is highly radioactive. Chemical formula: UO 2 .


Etymology

Origin of pitchblende

1760–70; half translation, half adoption of German Pechblende. See pitch 2, blende

Vocabulary lists containing pitchblende

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The elements were found in a mineral called pitchblende that released a powerful form of energy.

From Textbooks Jan. 1, 2012

A two-inch seam of uranium-bearing pitchblende stood out on the shoreline rock.

From Time Magazine Archive

They obtained a ton of pitchblende from the Austrian Government, began a long series of crushings, pulverizations, leachings, precipitations, crystallizations with apparatus at which a modern physicist would sneer.

From Time Magazine Archive

One gram of radium, worth about $70,000, is produced from six and a half to 13 tons of pitchblende.

From Time Magazine Archive

Rutherford was there to talk about his new disintegration theory of radioactivity, as part of which he brought out his piece of pitchblende.

From "A Short History of Nearly Everything" by Bill Bryson

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