polych[ae]ta

2 definitions found

polych[ae]ta - Collaborative International Dictionary of English v.0.48 :

  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]

  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]