operational

• POS: Adjective
• HYPHEN: op=er=a=tion=al

CIDE DICTIONARY

operational, adj. 

•  of or pertaining to operations; as, operational procedure.  [WordNet 1.5]
•  Fit or ready for service; available and in working condition; as, an operational aircraft. Opposite of out-of-service.  [WordNet 1.5]
•  of or intended for or involved in military operations. Opposite of nonoperational.  [WordNet 1.5]
•  In force; not expired or annulled; -- of rules or laws.  [WordNet 1.5]

  "de facto apartheid still operational even in the `new' African nations"  [WordNet 1.5]

OXFORD DICTIONARY

operational, adj.
1 a of or used for operations. b engaged or involved in operations.
2 able or ready to function.

Idiom

operational research the application of scientific principles to business management, providing a quantitative basis for complex decisions.

Derivative

operationally adv.

THESAURUS

operational

acting, active, agential, agentival, agentive, at work, behavioral, effective, effectual, efficacious, efficient, functional, functioning, go, going, going on, in exercise, in force, in hand, in operation, in play, in practice, in process, in the works, inaction, managerial, manipulational, on foot, on the fire, ongoing, operating, operative, performing, practical, practicing, running, serving, working