# lobotomy

> English word · Noun · IPA /ləˈbɒt.ə.mi/ · frequency rank #55,565

## Definitions
1. A surgical operation on the frontal lobe of the brain intent on treating certain mental illnesses.
2. The severing of the prefrontal cortex from the thalamic region of the brain.
3. The severing of the sympathetic nerve trunk.
4. Separation, removal or deprivation.

## Etymology
From lobe + -otomy.

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