Source : WordNet®

epidural
     n : regional anesthesia resulting from injection of an
         anesthetic into the epidural space of the spinal cord;
         sensation is lost in the abdominal and genital and pelvic
         areas; used in childbirth and gynecological surgery [syn:
          {epidural anesthesia}, {epidural anaesthesia}]

epidural
     adj : on or outside the dura mater [syn: {extradural}]