单词 | negative feedback |
释义 | negative feedbacknoun [mass noun] 1chiefly Biology The diminution or counteraction of an effect by its own influence on the process giving rise to it, as when a high level of a particular hormone in the blood may inhibit further secretion of that hormone, or where the result of a certain action may inhibit further performance of that action.Exogenous steroids exert negative feedback on central glucocorticoid receptors, suppressing the secretion of corticotrophic hormone and adrenocorticotrophic hormone and reducing cortisol secretion from the adrenal....
2 Electronics The return of part of an output signal to the input, which is out of phase with it, so that amplifier gain is reduced and the output is improved.This result indicates that negative feedback reduces system noise and enables a robust transition in cell state within a narrow Shh signal concentration range near the deterministically predicted switching point....
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