being in effect or operation "de facto apartheid is still operational even in the `new' African nations"- Leslie Marmon Silko "bus service is in operation during the emergency" "the company had several operating divisions" - in operation
(military) of or intended for or involved in military operations
fit or ready for use or service "the toaster was still functional even after being dropped" "the lawnmower is a bit rusty but still usable" "an operational aircraft" "the dishwasher is now in working order"
pertaining to a process or series of actions for achieving a result "operational difficulties" "they assumed their operational positions"