Definitions
1.NounA path whose initial point is equal to its terminal point.
2.NounAlternative form of closed curve.
3.NounA feedback loop, especially when found in:
A closed-loop transfer function.
An electronic feedback loop.
A PID controller.
4.NounA closed-loop transfer function.
5.NounAn electronic feedback loop.
6.NounA PID controller.
7.NounA closed ecological system.
8.NounClosed-loop communication.
9.NounThe 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.
10.NounAn economy in which materials are consistently reused rather than discharged as waste.
11.NounClipping of closed time loop.
12.NounAlternative form of knot loop.