General English


Cars & Driving

  • noun information in the form of a signal from a sensor, which is then used in a closed loop system to regulate the mixture strength, e.g.


  • noun information, especially about the result of an activity which allows adjustments to be made to the way it is done in future


  • noun information from one source which can be used to modify something or provide a constructive criticism of something


  • The return of a fraction of the output of a circuit, device, piece of equipment, or system, to the input of the same circuit, device, piece of equipment, or system. Feedback may be intentional, as in a closed loop control system, or unintentional, as in howling. When the feedback is in phase with the original input signal, it is positive feedback. When the feedback is 180 degrees out-of-phase the original input signal, it is negative feedback.
  • The mechanism employed to provide feedback (1).
  • The use of feedback (1) in a control system. Also, the output returned to the input in such a system.

Information & Library Science

  • noun comments from users or customers about what has been proposed or done

Media Studies

  • noun response to a publication from readers or colleagues
  • noun a high-pitched howling sound caused by the signal from a microphone being transmitted through speakers, which is then picked up by the microphone, e.g. when a radio listener phones in and has the radio playing in the background.


  • noun the linking of the result of an action back to the action itself


  • noun comments in the form of opinions about and reactions to something such as athletic performance, intended to provide useful information for future development