Word.ws English Dictionary

pneumatocyst

pneumatocyst noun: a sac or other structure containing air and used for flotation by a marine organism, chiefly used in reference to those of kelps and siphonophores.

Noun

pneumatocyst (plural pneumatocysts)

  1. (marine biology) A sac or other structure containing air and used for flotation by a marine organism, chiefly used in reference to those of kelps and siphonophores.

Forms of pneumatocyst

pluralpneumatocysts

Origin of pneumatocyst

From pneumato- + cyst.

Questions about pneumatocyst

What does pneumatocyst mean?
Pneumatocyst means a sac or other structure containing air and used for flotation by a marine organism, chiefly used in reference to those of kelps and siphonophores.
What part of speech is pneumatocyst?
Pneumatocyst is a noun.
What is the plural of pneumatocyst?
The plural of pneumatocyst is pneumatocysts.

Words near pneumatocyst in the dictionary

  1. pneumatocele
  2. pneumatoceles
  3. pneumatocoel
  4. pneumatocracy
  5. pneumatocratic
  6. pneumatocyst
  7. pneumatocystic
  8. pneumatocysts
  9. pneumatode
  10. pneumatodes
  11. pneumatogram

Source and license

Adapted from Wiktionary: pneumatocyst (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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