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1. a long-horned breed of beef cattle, usually red or variegated, formerly common in SW US
2. a now rare British breed of beef cattle with long curved horns
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
LonghornThe code name for the Windows Vista operating system. After the client version was renamed "Vista" in 2005, Longhorn referred to the server version until it was officially named Windows Server 2008 in May of 2007. See Windows Vista.
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