Total System means the transmission system and the distribution system of the Board taken together;
Multiple tomogram system means a computed tomography X-ray system which obtains X-ray transmission data simultaneously during a single scan to produce more than one tomogram.
multiple sclerosis means an inflammatory, nervous system disease in which the myelin sheaths around the axons of nerve cells of the brain and spinal cord are damaged, leading to demyelination and affecting the ability of nerve cells in the brain and spinal cord to communicate with each other;
Multiple line crossing means a point at which a proposed pipeline will either cross over or under an existing pipeline.
Multiple Dwelling means a building containing three or more dwelling units.