brainiac - definition and synonyms

  1.   From our crowdsourced Open Dictionary
    somebody who is exceptionally clever. A blend of the terms 'brain' and 'maniac'.

    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.

    Submitted from United Kingdom on 11/11/2010