'Physophorae' definitions:

Definition of 'Physophorae'

From: GCIDE
  • Physophorae \Phy*soph"o*r[ae]\, prop. n. pl. [NL., fr. Gr. fy^sa a bellows + fe`rein to bear.] (Zool.) An order of Siphonophora, furnished with an air sac, or float, and a series of nectocalyces. See Illust. under Nectocalyx. [1913 Webster]