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Webster 1913 Edition
Polychaeta
‖
Polˊy-chæ′ta
,Noun.
pl.
[NL., from Gr.
πολύσ
many + [GREEK] hair.] (Zool.)
One of the two principal groups of Chætopoda. It includes those that have prominent parapodia and fascicles of setæ. See Illust. under
Parapodia
.