closed loop

plural closed loops

1. mathematicsA path whose initial point is equal to its terminal point.
2. alternativemathematicsAlternative form of closed curve.
3. A feedback loop, especially when found in:
   1. cyberneticsA closed-loop transfer function.
   2. mathematicsAn electronic feedback loop.
   3. mathematicsA PID controller.
4. biologyA closed ecological system.
5. communicationClosed-loop communication.
6. The process of pulling water from one area of a reef aquarium and pumping it immediately elsewhere in the tank to create higher flow and minimize dead spots.
7. economicsAn economy in which materials are consistently reused rather than discharged as waste.
8. abbreviationclippinglifestyleClipping of closed time loop.
9. alternativeAlternative form of knot loop.