Internet Protocol address (IP address) - A number that's the unique IP address of each computer or device on the Internet. This number specifies a physical location, or node, on the network. Computerized devices in IPTV networks typically have their own unique IP address.
http://en.wikipedia.org/wiki/Static_IP_address

Static IP Address –  Used to identify semi-permanent devices on a network as their IP addresses are constant. Servers are the primary users of static IP addresses.
http://en.wikipedia.org/wiki/Static_IP_address#Static