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Annelida

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
An`nel´i`da
n. pl.1.(Zool.) A division of the Articulata, having the body formed of numerous rings or annular segments, and without jointed legs. The principal subdivisions are the Chætopoda, including the Oligochæta or earthworms and Polychæta or marine worms; and the Hirudinea or leeches. See Chætopoda.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.AnnelidaAnnelida - segmented worms: earthworms; lugworms; leeches
phylum Annelida
animal kingdom, Animalia, kingdom Animalia - taxonomic kingdom comprising all living or extinct animals
annelid, annelid worm, segmented worm - worms with cylindrical bodies segmented both internally and externally
Archiannelida, class Archiannelida - a class of Annelida
class Oligochaeta, Oligochaeta - earthworms
class Polychaeta, Polychaeta - marine annelid worms
class Hirudinea, Hirudinea - hermaphroditic aquatic or terrestrial or parasitic annelids
phylum - (biology) the major taxonomic group of animals and plants; contains classes
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? Mentioned in ? References in periodicals archive
 
ART: Like earthworms, leeches are part of the phylum Annelida.
It wants to suck your blood! A fearless scientist uses his body as ... by Bryner, Jeanna / Science World
Ancient lobopods and their modern counter-parts, in the phylum Onychophora, intrigue scientists because they may represent a link between two extremely successful phyla, Annelida (segmented worms) and Arthropoda.
Evolutionary oddball surfaces in Greenland by Monastersky, Richard / Science News
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