略語大辞典 [C] 20 LAN local area network ラン. ローカル エリア ネットワーク. 構内データ通信網. local area network; a computer communications system whose range is typically less than five kilometers; transmissions within a local area network generally are digital, carrying data among stations at rates usually abov 丸善「略語大辞典」JLogosID : 11880209