pneumatocyst

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

noun

, Biology.

1. the cavity of a pneumatophore.
2. pneumatophore.

Word History and Origins

Origin of pneumatocyst¹

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

Example Sentences

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg