op ‧ e ‧ ra ‧ tion ‧ al /ˌɒpəˈreɪʃ ə nəl◂ $ ˌɑːp-/ BrE AmE adjective
[ Word Family: noun : ↑ operation , ↑ cooperation , ↑ operative , ↑ cooperative , ↑ operator ; adjective : ↑ operational , ↑ operative , ↑ cooperative ≠ ↑ uncooperative ; verb : ↑ operate , ↑ cooperate ; adverb : ↑ operationally , ↑ cooperatively ]
1 . [not before noun] working and ready to be used:
The boat should be operational by this afternoon.
The new system became operational in March.
Our main offices are now fully operational.
⇨ ↑ operative 1 (1)
2 . [only before noun] relating to the operation of a business, government etc:
Patco accepted full responsibility for operational management.
—operationally adverb