Definitions for "Multihoming"
The ability to support multiple network connections. When more than one connection is available, Mac OS X selects the best connection according to the order specified in Network preferences.
Addressing scheme in IS-IS routing that supports assignment of multiple area addresses.
Multihoming is a technique to increase the reliability of the Internet connection for an IP network. As an adjective, it is typically used to describe a customer, rather than an Internet service provider (ISP) network.