# fugacity

> English word · Noun · IPA /fjuːˈɡæsɪti/

## Definitions
1. A measure of the tendency of a fluid to expand or escape.
2. A measure of the relative stability of different phases of a substance under the same conditions.
3. Transience.

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