from the GNU version of the Collaborative International Dictionary of English
- n. A genus of delicate branching hydroids having small sessile hydrothecæ along the sides of the branches.
from The Century Dictionary and Cyclopedia
- n. A Linnean genus of polyps, corresponding to the modern Sertulariidæ or Sertularida; the sea-firs, with small sessile lateral hydrothecæ, as S. pumila or S. abietina.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. sessile hydroid that forms feathery colonies
Sorry, no etymologies found.