Definition of yellowcake in English:

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Pronunciation: /ˈyelōˌkāk/


Impure uranium oxide obtained during processing of uranium ore.
Example sentences
  • The natural uranium and yellowcake stored at Tuwaitha was not nuclear bomb grade material.
  • The process of uranium enrichment is incredibly difficult and energy intensive. Thousands of tons of uranium ore should be processed into powder form called yellowcake.
  • Included in those facilities, say analysts, is a process line for turning uranium ore into yellowcake, the first step in the process towards enriching it into weapons-grade material.


1950s: so named because it is obtained as a yellow precipitate.

For editors and proofreaders

Syllabification: yel·low·cake

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