American Dictionary

Define dictionary terms easily in our powerful online English dictionary.

Searching for...

No matching words found

Try a different search term or browse the dictionary

Definition brainiac in American English

brainiac noun

noun
1

somebody who is exceptionally clever. A blend of the terms 'brain' and 'maniac'.

Example

He's found an almost perfect subject: the creation of the networking website Facebook, and the backstabbing legal row among the various nerds, geeks, brainiacs and maniacs about who gets the credit and the cash.

Definition brainiac in American English