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pneumatocyst

[ noo-mat-uh-sist, nyoo-, noo-muh-tuh-, nyoo ]

noun

, Biology.
  1. the cavity of a pneumatophore.


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Word History and Origins

Origin of pneumatocyst1

First recorded in 1855–60; pneumato- + -cyst
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Example Sentences

Rhizophysa filiformis, pink, with deep red patch surrounding the aperture of the pneumatocyst.

In the next stage the air-cavity of the pneumatocyst becomes established within the epiblast.

The structure so formed is the rudiment of the pneumatocyst (ep).

It has however no communication with the enclosed cavity of the pneumatocyst.

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pneumato-pneumatograph