1. [ noun ] (government) 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
Synonyms: defense_information_systems_agency
Related terms: agency Department_of_Defense
2. [ noun ] (botany) 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
Related terms: orchid genus_Disa
Similar spelling:   Dis