What does "pneumatocyst" mean?
Pneumatocyst: A cyst or sac of a siphonophore, containing air, and serving as a float, as in Physalia.
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
- Canonical URL: https://worddirectanswers.com/answers/what-does-pneumatocyst-mean
- Steward: Jason Burns
- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00