rocket science
noun
something requiring great intelligence, especially mathematical ability.
Words nearby rocket science
rocket engine,
rocket gun,
rocket launcher,
rocket propulsion,
rocket salad,
rocket science,
rocket scientist,
rocket ship,
rocket sled,
rocket-propelled,
rocketeer
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)