Pneumonophora
plural noun
Pneu·mo·noph·o·ra
| \ ˌn(y)üməˈnäfərə \
variants:
or Pneumonophorae \
-əˌrē
\
Definition of Pneumonophora
in former classifications
: a division of Holothurioidea comprising forms with a respiratory tree — compare apneumona
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Merriam-Webster unabridged
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