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Any of various worms or wormlike animals of the phylum Annelida, characterized by an elongated, cylindrical, segmented body and including the earthworms and the leeches.

[From New Latin Annelida, phylum name, from French annelés, pl. past participle of anneler, to ring, from Old French anel, ring, from Latin ānellus, diminutive of ānus, ring.]

an·nel′i·dan (ə-nĕl′ĭ-dən) adj.


(Animals) 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
(Zoology) of, relating to, or belonging to the Annelida
[C19: from New Latin Annelida, from French annelés, literally: the ringed ones, from Old French annel ring, from Latin ānellus, from ānulus ring]
annelidan n, adj


(ˈæn l ɪd)

also an•nel•i•dan

(əˈnɛl ɪ dn)

1. any segmented worm of the phylum Annelida, which includes the earthworms and leeches.
2. of or pertaining to the annelids.
[1825–35; < New Latin Annelida < Latin ānellus, diminutive of ānus ring]


Any of various worms or worm-like animals having soft, elongated bodies that are divided into ring-like segments. The earthworm and leech are annelids.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.annelid - worms with cylindrical bodies segmented both internally and externallyannelid - worms with cylindrical bodies segmented both internally and externally
worm - any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes; also many insect larvae
Annelida, phylum Annelida - segmented worms: earthworms; lugworms; leeches
archiannelid - small primitive marine worm lacking external segmentation and resembling polychaete larvae
oligochaete, oligochaete worm - hermaphroditic terrestrial and aquatic annelids having bristles borne singly along the length of the body
polychaete, polychaete worm, polychete, polychete worm - chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles
bloodsucker, hirudinean, leech - carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end
Adj.1.annelid - relating to or belonging to or characteristic of any worms of the phylum Annelidaannelid - relating to or belonging to or characteristic of any worms of the phylum Annelida
zoological science, zoology - the branch of biology that studies animals


[ˈænəlɪd] nanellide m