pneumatocyst

pneumatocyst is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.A cyst or sac of a siphonophore, containing air, and serving as a float, as in Physalia.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

Related questions

Reverse-dictionary questions

Definition-first questions whose answer is pneumatocyst.

Sources