FEEDBACK

n. 1 information about the result of an experiment etc.; response. 2 Electronics a the return of a fraction of the output signal from one stage of a circuit, amplifier, etc., to the input of the same or a preceding stage. b a signal so returned. 3 Biol. etc. the modification or control of a process or system by its results or effects, esp. by the difference between the desired and the actual result.