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nemertean

[ni-mur-tee-uh n] /nɪˈmɜr ti ən/
noun
1.
any member of the invertebrate phylum Nemertea, comprising the ribbon worms.
Also called ribbon worm.
Origin
1860-1865
1860-65; < Neo-Latin Nemerte(a), derivative of Nemertes a genus (< Greek Nēmertḗs name of a Nereid; see -a2) + -an
Related forms
nemertine
[ni-mur-teen] /nɪˈmɜr tin/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for nemertine

nemertean

/nɪˈmɜːtɪən/
noun
1.
Also called ribbon worm. any soft flattened ribbon-like marine worm of the phylum (or class) Nemertea (or Nemertina), having an eversible threadlike proboscis
adjective
2.
of, relating to, or belonging to the Nemertea
Word Origin
C19: via New Latin from Greek Nēmertēs a Nereid1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for nemertine

Nemertinea

any member of the invertebrate phylum Nemertea (sometimes called Nemertinea, or Rhynchocoela), which includes mainly free-living forms but also a few parasites of crustaceans, mollusks, and sea squirts. The majority of the approximately 900 known nemertean species are found in marine habitats. Some, however, live in freshwater or on land. The name proboscis worm derives from the muscular eversible proboscis, which is housed in a chamber above the gut. This tube-shaped organ, which in many aquatic forms has a needlelike stylet, is typically used to trap the prey; in land-dwelling species it may be used for rapid movement

Learn more about Nemertinea with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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