Annelida

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Annelida

 [ah-nel´ĭ-dah]
a phylum of metazoan invertebrates, the segmented worms, including leeches.

An·nel·i·da

(an'nĕ-lī'dă),
A phylum that includes the segmented or true worms, such as the earthworm.

Annulata

or

Annelida

the ringed or segmented worms. See ANNELID.