Pneumatocyst Definition

noun

(zoology) A cyst or sac of a siphonophore, containing air and serving as a float.

Wiktionary

Other Word Forms of Pneumatocyst

Noun

Singular:
pneumatocyst
Plural:
pneumatocysts

Origin of Pneumatocyst

  • pneumato- +‎ cyst

    From Wiktionary

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pneumatocyst