[ ni-mur-tee-uh n ]
/ nɪˈmɜr ti ən /


any member of the invertebrate phylum Nemertea, comprising the ribbon worms.

Origin of nemertean

1860–65; < New Latin Nemerte(a), derivative of Nemertes a genus (< Greek Nēmertḗs name of a Nereid; see -a2) + -an
Also called ribbon worm.

Related forms

ne·mer·tine [ni-mur-teen] /nɪˈmɜr tin/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for nemertean

  • The principal characteristic of the nemertean worms is a long thread-like organ, known as the proboscis.

    The Sea-beach at Ebb-tide|Augusta Foote Arnold

British Dictionary definitions for nemertean


nemertine (ˈnɛməˌtaɪn)

/ (nɪˈmɜːtɪən) /


Also called: ribbon worm any soft flattened ribbon-like marine worm of the phylum (or class) Nemertea (or Nemertina), having an eversible threadlike proboscis


of, relating to, or belonging to the Nemertea

Word Origin for nemertean

C19: via New Latin from Greek Nēmertēs a Nereid 1
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