# pneumaticity

> English word · Noun

## Definitions
1. The state of being pneumatic, or of having a cavity or cavities filled with air.

## Etymology
From pneumatic + -ity.

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