brainiac

[ brey-nee-ak ]

noun
  1. a highly intelligent person.

Origin of brainiac

1
From Brainiac, a superintelligent, villainous alien in the Superman comics, probably brain + (man)iac

Words Nearby brainiac

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use brainiac in a sentence

British Dictionary definitions for brainiac

brainiac

/ (ˈbreɪnɪˌæk) /


noun
  1. informal a highly intelligent person

Origin of brainiac

1
C20: from a super-intelligent character in an American comic strip

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012