Definition of: operative

(op′ər·ə·tiv, -ə·rā′tiv) adjective
1. Exerting force or influence.
2. Moving or working efficiently; effective.
3. Connected with operations: operative surgery.
4. Concerned with practical work, mechanical or manual.
5. Engaged in practical activity, as a workman or mechanic.
—noun
1. A person employed as a skilled worker, as in a mill or factory, etc.; an artisan.
2. Colloq. A detective; one who works secretly. See synonyms under ARTIST.
—op′·er·a·tive·ly adverb