Definitions

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

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