spinal anesthesia 名詞
 脊髓性感覺缺失,脊髓麻醉,蛛網膜下腔麻醉
 spinal anesthesia
      n : anesthesia of the lower half of the body; caused by injury
          to the spinal cord or by injecting an anesthetic beneath
          the arachnoid membrane that surrounds the spinal cord
          [syn: spinal anaesthesia, spinal]