[ˈfiːdbak], (Noun)

Definitions:
- information about reactions to a product, a person's performance of a task, etc. which is used as a basis for improvement
(e.g: throughout this process we have obtained valuable feedback)

- a screeching or humming sound resulting from the return of a fraction of the output signal from an amplifier, microphone, or other device to the input of the same device
(e.g: Punk Rock Girl opens the disc with plenty of guitar feedback)

- the modification or control of a process or system by its results or effects, for example in a biochemical pathway or behavioural response


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