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
adjective
2.
of, relating to, or belonging to the Annelida
Derived forms
annelidan (əˈnɛlɪdən)
noun, adjective
Word origin
C19: from New Latin Annelida, from French annelés, literally: the ringed ones, from Old French annel ring, from Latin ānellus, from ānulus ring