One of the mysteries of the English language finally explained.
1mass noun Impure uranium oxide obtained during processing of uranium ore.
- ‘The problem of uranium-contaminated groundwater dates back to the Cold War when mines and mills throughout the United States produced millions of tons of uranium oxide, or yellowcake, to build nuclear bombs.’
- ‘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.’
- ‘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.’
- ‘The natural uranium and yellowcake stored at Tuwaitha was not nuclear bomb grade material.’
2yellow cakeUS A vanilla-flavoured sponge cake having a pale yellow colour from the egg yolks and butter in the recipe.‘spread icing over one layer of a yellow cake’
1940s: so named because the oxide is obtained as a yellow precipitate.
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