| sertularia | (n) sessile hydroid that forms feathery colonies, Syn. genus Sertularia |
| sertularian | (n) feathery colony of long-branched stems bearing stalkless paired polyps |
| Sertularia | ‖n. [ NL., dim. fr. L. serta a garland. ] (Zool.) A genus of delicate branching hydroids having small sessile hydrothecae along the sides of the branches. [ 1913 Webster ] |
| Sertularian | n. (Zool.) Any species of Sertularia, or of |