A gas-filled sac serving as a float in some colonial marine hydrozoans, like the Portuguese man-of-war.
Botany A specialized respiratory root construction in a few aquatic flowers, like the bald cypress.
A gas-filled sac or float of some colonial marine coelenterates, such as the Portuguese man-of-war.
An aerial root, in mangroves etc., skilled for gaseous trade.
one of many Pneumonophora.
A pneumatocyst, or a structure which aids these types of a float; specially, the proximal dilatation associated with the cœnosarc or hydrosome regarding the Physophoridæ See slices under Athorybia and Hydroszoa.
An apparatus for supplying someone with air whenever in somewhere filled with bad or unwholesome environment.
In phytogeography, a lateral root, submerged or higher usually confronted with air, at the very least periodically, therefore differentiated regarding provide the objective of respiration; a respiratory root.
an air-filled root (submerged or exposed) that may work as a respiratory organ of a marsh or swamp plant