- rocket scientist - a clever thinker; "you do not have to be a rocket scientist to figure that out"
--1 is a kind of thinker
- rocket engineer, rocket scientist - an engineer who builds and tests rockets
--2 is a kind of engineer, applied scientist, technologist
--2 has particulars:Braun, von Braun, Wernher von Braun, Wernher Magnus Maximilian von Braun - rocket engineer, rocket scientist - an engineer who builds and tests rockets