closed loop

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a turn or sharp curve in a cordlike structure.
capillary l's minute endothelial tubes that carry blood in the papillae of the skin.
closed loop a system in which the input to one or more of the subsystems is affected by its own output.
Henle's loop the U-shaped part of the nephron extending from the proximal to the distal convoluted tubule.
ileal loop ileal conduit.
Lippes loop a form of intrauterine contraceptive device.
open loop a system in which an input alters the output, but the output has no effect on the input.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

closed loop

1. A biological system in which a substance produced affects the output of the substance by a feedback mechanism.
2. In the learning of motor skills, the process of using sensory feedback to modify fine motor control or skilled movements.
See also: loop
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Aviya's Closed Loop Bench also allows the engineer to override Aircraft/Airframe Model parameters, enabling the creation of fault conditions and flight scenarios.
Closed Loop Partners invests in sustainable consumer goods, advanced recycling technologies and the development of the circular economy.
According to a data sheet provided by the Closed Loop Fund, seven MRFs operate in the Chicago metro area and all are all near or at capacity.
Closed loop systems must be able to gather such data, so that its mathematical models could be corrected according to it.
The Closed Loop scheme will initially be available in four major cities - London, Birmingham, Leeds and Manchester - and their surrounding areas with the aim of taking the scheme nation wide over the next two years.
Its contract for the supply of rPET will enable the company to be first to market with a range of fully recycled and recyclable disposable products using material from Closed Loop London, marking a step-change in UK food disposables manufacture.
The Closed Loop Filtration System is built of stainless steel to increase the service life of the system.
In this paper, one patented closed loop anaesthesia delivery system (CLADS) (5021DEL/2003) is compared to manual control of propofol delivery titrated to the bispectral index (BIS[TM]).
The plant, operated by Closed Loop London, will transform the recycling of PET plastic in the U.K.
The company's closed loop filtration system is for use in the waterjet cutting industries.
There are two basic categories of geothermal systems: open loop and closed loop systems.
Options: Closed loop clamp-tonnage control; cavity-pressure based cutoff; PVC or thermoset kits.

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