# hydrocephalus

> English word · Noun · frequency rank #65,191

## Definitions
1. A usually congenital condition in which an abnormal accumulation of fluid in the cerebral ventricles causes enlargement of the skull and compression of the brain, destroying much of the neural tissue.

## Etymology
Borrowed from Ancient Greek ὑδροκέφαλον (hudroképhalon).

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