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  Word: Spirifer

  ID	Word	Wordtype	Definition
  146684	Spirifer	n.	Any one of numerous species of fossil brachipods of the genus Spirifer, or Delthyris, and allied genera, in which the long calcareous supports of the arms form a large spiral, or helix, on each side.

  
  

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  Outpeer | Grandma | Indivisible | Comb | Spar |