Oligochaeta

from WordNet (r) 3.0 (2006)

Oligochaeta
    n 1: earthworms [syn: {Oligochaeta}, {class Oligochaeta}]

from The Collaborative International Dictionary of English v.0.48

Oligochaeta \Ol`i*go*chae"ta\, Oligochaeta \Ol`i*go*chae"ta\,
   prop. n. pl. [NL., fr. Gr. 'oli`gos little, pl., few + ?
   hair.] (Zool.)
   An order of Annelida which includes the earthworms and
   related species, including some small freshwater species.
   [1913 Webster +PJC]

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]

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