operative


From The Collaborative International Dictionary of English v.0.48:

Operative \Op"er*a*tive\, a. [Cf.L. operativus, F. op['e]ratif.]
   1. Having the power of acting; hence, exerting force,
      physical or moral; active in the production of effects;
      as, an operative motive; operative laws.
      [1913 Webster]

            It holds in all operative principles. --South.
      [1913 Webster]

   2. Producing the appropriate or designed effect; efficacious;
      effective; as, an operative dose, rule, or penalty.
      [1913 Webster]

   3. (Surg.) Based upon, or consisting of, an operation or
      operations; as, operative surgery.
      [1913 Webster]
.

From The Collaborative International Dictionary of English v.0.48:

Operative \Op"er*a*tive\, n.
   1. A skilled worker; an artisan; esp., one who operates a
      machine in a mill or manufactory.
      [1913 Webster]

   2. One who acts as an agent of another, especially a
      detective or spy.
      [PJC]
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