Inciting; encouraging or moving; rousing to action; stimulating.
Serving to kindle or set on fire.
Something that motivates, rouses, or encourages.
A bonus or reward, often monetary, to work harder.
Effectual or important.
Functional, in working order.
Having the power of acting; hence, exerting force, physical or moral; active in the production of effects.
Producing the appropriate or designed effect; efficacious.
Based upon, or consisting of, a surgical operation or operations.
An employee or other worker with some particular function or skill.
A spy, secret agent, or detective.
A participant in an operation.