Polychaeta

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Polychaeta \Pol`y*ch[ae]"ta\, n. pl. [NL., from Gr. poly`s many
     + ? hair.] (Zool.)
     One of the two principal groups of Ch[ae]topoda. It includes
     those that have prominent parapodia and fascicles of set[ae].
     See Illust. under {Parapodia}.
     [1913 Webster]



From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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 WordNet (r) 2.0 [wn]:

  Polychaeta
       n : marine annelid worms [syn: {class Polychaeta}]