English Explanatory Dictionary

pneumatophore

English dictionary entry

Meanings

noun
  1. A gas-filled sac or float of some colonial marine coelenterates, such as the Portuguese man-of-war.
  2. An aerial root, in mangroves etc., specialized for gaseous exchange.
  3. An apparatus consisting of a bag with a tube and mouthpiece, which may be attached to the body. The bag contains oxygen to be breathed by the wearer in rescue work in mines, etc.

Word forms

pneumatophore pneumatophores

Etymology

From pneumato- + -phore.

Derived words

pneumatophorous
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