Adjective
1. pertaining to a process or series of actions for achieving a result;
"operational difficulties""they assumed their operational positions"2. 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"3. of or intended for or involved in military operations
4. 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"