from the GNU version of the Collaborative International Dictionary of English
- n.pl. An order of Siphonophora, furnished with an air sac, or float, and a series of nectocalyces. See Illust. under nectocalyx.
from The Century Dictionary and Cyclopedia
- n. An order of siphonophorous oceanic hydrozoans, having the proximal end modified into a float or pneumatophore (as distinguished from a somatocyst).
Sorry, no etymologies found.