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

  • n. Any of several velvety, usually brightly colored worms of the phylum Nemertina (or Nemertea) that have a flat, unsegmented body with an extensible proboscis and live in the sea or in the mud of the intertidal zone. Also called ribbon worm.
  • adj. Of or belonging to the phylum Nemertina (or Nemertea).

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of several unsegmented, brightly-coloured worms, of the phylum Nemertea; the ribbon worms

from the GNU version of the Collaborative International Dictionary of English

  • adj. Of or pertaining to the Nemertina.

from The Century Dictionary and Cyclopedia

  • Pertaining to the Nemertea, or having their characters.
  • n. A worm of the class Nemertea.

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

  • n. soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract


From New Latin Nēmertēs, type genus, from Greek, name of a Nereid.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • Other predators include crayfish, turbellarians, and nemertean worms.


  • I don't know much about nemertean biology, so I looked them up in my old edition of Barnes' Invertebrate Biology.

    A very long worm in any case

  • There is also one potentially endemic spider, 11 endemic terrestrial mollusks, and one (now-extinct) endemic nemertean, Pantinonemertes agricola.

    Bermuda subtropical conifer forests

  • The ecoregion has witnessed the recent extinction of many endemic species, including the Bermuda spike rush (Eloecharis bermudiana) and the only endemic nemertean, Pantinonemertes agricola.

    Bermuda subtropical conifer forests

  • In the deep sea live some of the most bizarre and highly adapted creatures on the planet Three-foot nemertean worms and carnivorous sea stars prowl the Antarctic in search of flesh

    BBC News | News Front Page | World Edition

  • But, rather surprisingly, the sea bed is carpeted with thousands of sea stars, sea urchins and huge nemertean worms which make this sub-zero world their home.

    Home | Mail Online


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