local area network

noun
1.
a system for linking private telecommunications equipment, as in a building or cluster of buildings.
2.
Computers. a system for linking a number of microcomputers, terminals, work stations, etc. with each other or with a mainframe computer in order to share data, printers, information, programs, disks, etc.; usually confined to one office or building. Compare network ( def 6 ).
Also, LAN.
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Collins
World English Dictionary
local area network
 
n
computing LAN the linking of a number of different devices by cable within a system

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
local area network   (lō'kəl)  Pronunciation Key 
See LAN.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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FOLDOC
Computing Dictionary

local area network definition

networking
(LAN) A data communications network which is geographically limited (typically to a 1 km radius) allowing easy interconnection of terminals, microprocessors and computers within adjacent buildings. Ethernet and FDDI are examples of standard LANs.
Because the network is known to cover only a small area, optimisations can be made in the network signal protocols that permit data rates up to 100Mb/s.
See also token ring, wide area network, metropolitan area network..
Usenet newsgroup: news:comp.dcom.lans.misc.
(1995-03-13)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Example sentences
On your home local area network, voice will be fine.
Nor would you have been protected if your computer was part of a so-called local area network, or lan.
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