- disa - 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
--1 is a kind of orchid, orchidaceous plant
--1 is a member of genus Disa- Defense Information Systems Agency, DISA - 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
--2 is a kind of agency, federal agency, government agency, bureau, office, authority
--2 is a part ofDepartment of Defense, Defense Department, United States Department of Defense, Defense, DoD - Defense Information Systems Agency, DISA - 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