peristome definition, peristome meaning | English dictionary

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peristome

  

      n  
1    a fringe of pointed teeth surrounding the opening of a moss capsule  
2    any of various parts surrounding the mouth of invertebrates, such as echinoderms and earthworms, and of protozoans  
     (C18: from New Latin peristoma, from peri- + Greek stoma mouth)  
  peristomal, peristomial      adj  
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