• (n. pl.) The division of Siphonophora which includes the Physalia and allied genera; -- called also Pneumatophorae.
Pneu`mo·noph'o·ra noun plural [ New Latin , from Greek ... a lung + ... to bear.] (Zoology) The division of Siphonophora which includes the Physalia and allied genera; -- called also Pneumatophoræ .