Definitions for operational
- 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
- pertaining to a process or series of actions for achieving a result; "operational difficulties"; "they assumed their operational positions"
More definitions at Dictionary.com or Die.net Dictionary.