# brainiac

> English word · Noun · IPA /ˈbɹeɪniæk/ · frequency rank #48,632

## Definitions
1. A very intelligent and usually studious, erudite person.

## Etymology
Blend of brain + maniac, with influence from ENIAC, the name of an early computer. The term was coined as the name of the fictional supervillain Brainiac in the Superman series and first appeared in Action Comics comic book #242 in July, 1958. By surface analysis, brainy + -ac.

## Common misspellings (11)
`bariniac`, `bbrainiac`, `braiinac`, `brainaic`, `brainiacc`, `brainica`, `brainniac`, `braniiac`, `brianiac`, `brrainiac`, `rbainiac`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/brainiac