Below is the definition for the word you requested, useful for Scrabble and other word games. To find more definitions please use the dictionary page.
pertaining to a process or series of actions for achieving a result; "operational difficulties"; "they assumed their operational positions"
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"
(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"