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2 definitions found

From: Webster's Revised Unabridged Dictionary (1913)

 Chae·tog·na·tha, Chæ·tog·na·tha n. pl.  Zool a phylum consisting of the arrowworms, a group of small active transparent free-swimming marine worms, of which the genus Sagitta is the type. They have groups of curved spines on each side of the head.
 Syn: -- phylum Chaetognatha.
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From: WordNet (r) 2.0

 Chaetognatha
      n : arrowworms: a group of small active transparent marine worms
          [syn: phylum Chaetognatha]