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annelid
(redirected from Chaetopoda)

    Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.03 sec.

annelid

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Body plan of an earthworm. Partitions (septa) divide the body cavity (coelom) into more than 100 …
(credit: © Merriam-Webster Inc.)
Any member of a phylum (Annelida) of invertebrate animals that possess a body cavity (coelom), movable bristles (setae), and a body divided into segments by crosswise rings. Known as segmented worms, annelids are divided into three classes: marine worms (Polychaeta; see polychaete), earthworms (Oligochaeta), and leeches (Hirudinea).

annelid
1. 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
2. of, relating to, or belonging to the Annelida


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