Of, pertaining to, or characteristic of the order Siphonaptera of fleas.

Any species of the order Siphonaptera, a flea.

(zoology) Any of various transparent marine hydrozoans, of the order Siphonophorae, that float or swim as colonies of polyps.

plural of siphonophore

(botany) A type of stele in which the vascular tissue in the stem forms a cylinder surrounding a central pith and possessing leaf gaps.

plural of siphonariid

Any member of the Siphonariidae, a family of air-breathing sea snails.

A longitudinal flagellated chamber found in most cnidarians in the classes Scyphozoa and Anthozoa, extending from the mouth towards the coelenteron (body cavity).

Resembling or characteristic of a siphon.

The scientific study of fleas and other insects of the order Siphonaptera.