Operational means ready and able to work, or to do with running things. Fully operational, operational costs, operational matters.
Fully operational is the phrase used when a system is in service rather than being tested, and it is a real milestone in engineering and in the forces. Operational matters means the day-to-day running, as against strategy, which is the deciding.
1adjectiveoperationalReady and able to work, or to do with running things.
“The airport is operational again after the snow was cleared from the runway.”
operational is a state.
From operation + -al.
Etymology from Wiktionary, CC BY-SA