| annelida | <zoology> A division of the Articulata, having the body formed of numerous rings or annular segments, and without jointed legs. The principal subdivisions are the Chaetopoda, including the Oligochaeta or earthworms and Polychaeta or marine worms; and the Hirudinea or leeches. See Chaetopoda. Origin: NL. See Annelid. Source: Websters Dictionary (01 Mar 1998) |
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| annelidan | <zoology> Of or pertaining to the Annelida. One of the Annelida. Origin: F. Annelide, fr. Anneler to arrange in rings, OF. Anel a ring, fr. L. Anellus a ring, dim. Of annulus a ring. Source: Websters Dictionary (01 Mar 1998) |