noun. an air-filled root (submerged or exposed) that can function as a respiratory organ of a marsh or swamp plant.
- -phore (English)
- pneumat- (English)
Example sentences of the word pneumatophore
1. Noun, singular or mass
Numerous jellyfish also passively ride pelagic currents, including the notorious Portuguese man o’ war, which also can sail by virtue of a specialized, wind-catching structure called a pneumatophore.