Definition of rocket science in English:

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rocket science



[mass noun, usually with negative] humorous
Something very difficult to understand: we want you to get out and vote—it’s not exactly rocket science
More example sentences
  • Organic weed control is not rocket science, but it does take understanding the anatomy and physiology of the crop plants, the weeds and the soil.
  • Setting up on your own isn't rocket science, but it does take nerve and an injection of capital to get you rolling.
  • The chord changes aren't rocket science, but the rhythms are fast and the fills are rare, quick and poisonous.
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