Definition of brainpower noun from the Oxford Advanced Learner's Dictionary

 

brainpower

 noun
noun
BrE BrE//ˈbreɪnpaʊə(r)//
 
; NAmE NAmE//ˈbreɪnpaʊər//
 
[uncountable]
 
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the ability to think; intelligence Most humans only use a fraction of their total useful brainpower.
See the Oxford Advanced American Dictionary entry: brainpower