Diphtheria is a highly contagious and potentially life-threatening bacterial disease caused by Corynebacterium diphtheriae. There are two types of diphtheria: respiratory and cutaneous. Respiratory diphtheria involves the nose, throat and tonsils, and cutaneous diphtheria involves the skin.
cell address. (computer science). A combination of a letter and a number that specifies the column and row in which a cell is located on a spreadsheet. 1  Facebook. 2  Twitter.
A media access control address (MAC address), also called physical address, is a unique identifier assigned to network interfaces for communications on the physical network segment.MAC addresses are used as a network address for most IEEE 802 network technologies, including Ethernet and WiFi.Logically, MAC addresses are used in the media access control protocol sublayer of the OSI reference model.MAC addresses are most often assigned by the manufacturer of a network interface controller (NIC) and are stored in its hardware, such as the card's read-only memory or some other firmware mechanism.ogically, MAC addresses are used in the media access control protocol sublayer of the OSI reference model. MAC addresses are most often assigned by the manufacturer of a network interface controller (NIC) and are stored in its hardware, such as the card's read-only memory or some other firmware mechanism.