Noun: brainiac brey-nee-ak
Usage: N. Amer
Usage: N. Amer
- Someone who has exceptional intellectual ability and originality
"Mozart was a child brainiac";
- genius, mastermind, brain, Einstein, wonder, smart cookie [N. Amer, informal], brainbox [Brit, informal]
Derived forms: brainiacs
Type of: intellect, intellectual
Encyclopedia: Brainiac