Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Wikipedia.
closed loop[¦klōzd ′lüp]
A loop whose execution continues indefinitely in the absence of any external intervention.
A family of automatic control units linked together with a process to form an endless chain; the effects of control action are constantly measured so that if the controlled quantity departs from the norm, the control units act to bring it back.
A processing cycle in which wastes are completely recycled or reused and never enter the environment.