[ an-l-id ]
/ ˈæn l ɪd /


any segmented worm of the phylum Annelida, including the earthworms, leeches, and various marine forms.


belonging or pertaining to the Annelida.

Nearby words

  1. anneal,
  2. annealing,
  3. annectent,
  4. annectent gyrus,
  5. annecy,
  6. annelida,
  7. annensky,
  8. annette,
  9. annex,
  10. annexa

Also an·nel·i·dan [uh-nel-i-dn] /əˈnɛl ɪ dn/.

Origin of annelid

First recorded in 1825–35; see origin at Annelida Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for annelid

British Dictionary definitions for annelid


/ (ˈænəlɪd) /


any worms of the phylum Annelida, in which the body is divided into segments both externally and internally. The group includes the earthworms, lugworm, ragworm, and leeches


of, relating to, or belonging to the Annelida
Derived Formsannelidan (əˈnɛlɪdən), noun, adjective

Word Origin for annelid

C19: from New Latin Annelida, from French annelés, literally: the ringed ones, from Old French annel ring, from Latin ānellus, from ānulus ring

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

Word Origin and History for annelid



"segmented worm," 1834, from French annélide, source of the phylum name Annelida, coined in Modern Latin 1801 by French naturalist J.B.P. Lamarck (1744-1829), from annelés "ringed ones" (from Latin anulus "little ring," a diminutive of anus; see anus) + Greek eidos "form, shape" (see -oid).

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for annelid


[ ănə-lĭd ]

Any of various worms or wormlike animals of the phylum Annelida, characterized by an elongated, cylindrical body divided into ringlike segments. Most annelids have movable bristles called setae, and include earthworms, leeches, and polychetes (marine worms).
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.