feedback Definition

1. Responses and reactions to an inquiry or report, etc that provide guidelines for adjustment and development.
2. The process by which part of the output of a system or device, or of a component of a living organism, is returned to the input, in order to regulate or modify subsequent output.
3. In a public-address system, etc: the partial return to the microphone of the sound output, producing high-pitched whistle or howl.
4. The whistling noise so produced.
5. Used in relation to biological, etc, self-adjusting systems.