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Oligochaeta 寡毛綱 寡毛綱 Oligochaeta n 1: earthworms [synonym: {Oligochaeta}, {class Oligochaeta}] 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] 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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