Annelida

from WordNet (r) 3.0 (2006)

Annelida
    n 1: segmented worms: earthworms; lugworms; leeches [syn:
         {Annelida}, {phylum Annelida}]

from The Collaborative International Dictionary of English v.0.48

Annelida \An*nel"i*da\, n. pl. [NL. See {Annelid}.] (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 {Ch[ae]topoda}, including
   the {Oligoch[ae]ta} or earthworms and {Polych[ae]ta} or
   marine worms; and the {Hirudinea} or leeches. See
   {Ch[ae]topoda}.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Annulata \An`nu*la"ta\, n. pl. [Neut. pl., fr. L. annulatus
   ringed.] (Zool.)
   A class of articulate animals, nearly equivalent to
   {Annelida}, including the marine annelids, earthworms,
   Gephyrea, Gymnotoma, leeches, etc. See {Annelida}.
   [1913 Webster]

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