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from the GNU version of the Collaborative International Dictionary of English

  • A division of Hydroidea in which the zooids are naked, or not inclosed in a capsule. See tubularian.

from The Century Dictionary and Cyclopedia

  • A name of the gymnoblastic hydroid hydrozoans, which are not sheathed, that is, have no gonangia and no hydrothecæ: a synonym of Gymnoblastea (which see).


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