du·ra /ˈdʊrə/
  dura
  硬膜,硬腦膜,硬腦脊膜
  Du·ra n. Short form for Dura mater.
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  dura
       n : the outermost (and toughest) of the 3 meninges [syn: dura
           mater]
  Dura
     the circle, the plain near Babylon in which Nebuchadnezzar set
     up a golden image, mentioned in Dan. 3:1. The place still
     retains its ancient name. On one of its many mounds the pedestal
     of what must have been a colossal statue has been found. It has
     been supposed to be that of the golden image.