pneumatocyst

English

Etymology

From pneumato- +‎ cyst.

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.

Translations

sac containing air used for flotation by marine organism

• French: pneumatocyste m, aérocyste (fr) m