# craniotomy

> English word · Noun · frequency rank #97,978

## Definitions
1. The surgical procedure for removing a part of the skull, called a bone flap, prior to a treatment. The bone flap is replaced at the end of the operation.

## Etymology
From cranio- + -tomy.

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