The Collaborative International Dictionary of English v.0.48:
brainpower \brainpower\ n. mental ability; intellectual acuity. Syn: brain, learning ability, mental capacity, mentality, wit. [WordNet 1.5]WordNet (r) 3.0 (2006):
brainpower n 1: mental ability; "he's got plenty of brains but no common sense" [syn: brain, brainpower, learning ability, mental capacity, mentality, wit]