adjective 1.able to function or be used; functional:
How soon will the new factory be operational? 2.Military.a.of, pertaining to, or involved in military
operations.
b.on active service or combat duty: All units of the command are operational.
3.of or pertaining to operations or an operation.
Related forms op·er·a·tion·al·ly, adverb
non·op·er·a·tion·al, adjective
pre·op·er·a·tion·al, adjective