| the tough, fibrous membrane forming the outermost of the three coverings of the brain and spinal cord. Also called dura. Compare arachnoid (def. 6), pia mater. |

dura mater dura ma·ter (mā'tər, mä-)
n.
The tough fibrous membrane covering the brain and the spinal cord and lining the inner surface of the skull. Also called dura , pachymeninx.
dura mater (d r'ə mā'tər, mä'-) Pronunciation Key
The tough fibrous membrane covering the brain and the spinal cord and lining the inner surface of the skull. It is the outermost of the three membranes (meninges) that surround the central nervous system, overlying the arachnoid and pia 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.