American English

Definition of rocket science noun from the Oxford Advanced American Dictionary

 

rocket science

 noun
noun
 
[uncountable]
 
jump to other results
Idioms
it's not rocket science (informal)
 
jump to other results
used to emphasize that something is easy to do or understand Go on, you can do it. It's not exactly rocket science, is it?
See the Oxford Advanced Learner's Dictionary entry: rocket science