negative feedback

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negative feedback

[′neg·əd·iv ′fēd‚bak]
(control systems)
Feedback in which a portion of the output of a circuit, device, or machine is fed back 180° out of phase with the input signal, resulting in a decrease of amplification so as to stabilize the amplification with respect to time or frequency, and a reduction in distortion and noise. Also known as inverse feedback; reverse feedback; stabilized feedback.
(science and technology)
Feedback which tends to reduce the output in a system.

negative feedback

see SYSTEMS THEORY.