any orchid of the genus Disa; beautiful orchids with dark
green leaves and usually hooded flowers; much prized as emblematic flowers in their native regions
a combat support agency in the Department of Defense responsible for developing and operating and supporting information systems to serve the needs of the President and the Secretary of Defense and the Joint Chiefs of Staff Synonym(s):Defense Information Systems Agency, DISA
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]:
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De - Pt