- any member of the invertebrate phylum Nemertea, comprising the ribbon worms.
Origin of nemertean
Also called ribbon worm.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
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
- 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
C19: via New Latin from Greek Nēmertēs a Nereid 1