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2017 Word of the Year

rocket science

noun
1.
2.
something requiring great intelligence, especially mathematical ability.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for rocket science

rocket science

noun
1.
(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
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12
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