yellowcake

[yel-oh-keyk]
noun
a processed oxide of uranium, U 3 O 8 , extracted and concentrated from uranium ore: used as the raw material for commercial nuclear materials, especially fuel elements in nuclear reactors.
Also, yellow cake.


Origin:
1945–50; yellow + cake

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
yellowcake

noun
an impure mixture of uranium oxides obtained during the processing of uranium ore 
WordNet® 3.0, © 2006 by Princeton University.
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Example sentences
It has converted yellowcake into uranium hexafluoride gas.
The facility employs a vacuum dryer system for yellowcake processing.
The yellowcake is separated from the precipitation solution by filtration.
The yellowcake is converted into uranium hexafluoride gas at a special facility
  and loaded into cylinders.
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