from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various highly colorful marine gastropods of the suborder Nudibranchia, lacking a shell and gills but having fringelike projections that serve as respiratory organs. Also called nudibranch.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of several marine opisthobranch gastropod mollusks of the Nudibranchia

from the GNU version of the Collaborative International Dictionary of English

  • A holothurian.
  • A nudibranch mollusk.
  • n. A holothurian.

from The Century Dictionary and Cyclopedia

  • n. A marine opisthobran-chiate gastropod whose shell is rudimentary or wanting; a nudibranch, as a doridoid.
  • n. A holothurian of any kind.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any of various marine gastropods of the suborder Nudibranchia having a shell-less and often beautifully colored body


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