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      n   pl   , pappi   a ring of fine feathery hairs surrounding the fruit in composite plants, such as the thistle; aids dispersal of the fruits by the wind  
     (C18: via New Latin, from Greek pappos grandfather, old man, old man's beard, hence: pappus, down)  
  pappose, pappous      adj  

Pappus of Alexandria  
      n   3rd century b.c., Greek mathematician, whose eight-volume Synagoge is a valuable source of information about Greek mathematics  
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