rocket science


noun

something requiring great intelligence, especially mathematical ability.
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British Dictionary definitions for rocket science

rocket science


noun

informal an activity requiring considerable intelligence and ability (esp in the phrase not exactly rocket science)

Derived Forms

rocket scientist, noun
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