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2 definitions found

From: Webster's Revised Unabridged Dictionary (1913)

 Pe·cop·te·ris prop. n.  Paleon. An extensive genus of fossil ferns; -- so named from the regular comblike arrangement of the leaflets.
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From: WordNet (r) 2.0

 pecopteris
      n : Carboniferous fossil fern characterized by a regular
          arrangement of the leaflets resembling a comb