Longman Dictionary of Contemporary English
The Collaborative International Dictionary
LAN \LAN\ n. [Local Area Network.] A local area network; a network[3] connecting computers and word processors and other electronic office equipment within a small area, to create an inter-office system, typically within one building or one site of a corporation. Contrasted to WAN, a wide-area network.
Syn: local area network.
Wiktionary
n. 1 (context computing English) An interconnection of computers that are in relatively close proximity to each other, such as within a building. 2 (context computing English) A network on which all device communicate using OSI model device layer addressing. 3 (context Internet English) A network on which all communication is delivered by way of MAC addresses and that is not route.
WordNet
n. a local computer network for communication between computers; especially a network connecting computers and word processors and other electronic office equipment to create a communication system between offices [syn: LAN]
Wikipedia
A local area network (LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building and has its network equipment and interconnects locally managed. By contrast, a wide area network (WAN), not only covers a larger geographic distance, but also generally involves leased telecommunication circuits or Internet links.
Ethernet and Wi-Fi are the two most common transmission technologies in use for local area networks. Historical technologies include ARCNET, Token ring, and AppleTalk.