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WordReference Random House Learner's Dictionary of American English © 2024feed•back /ˈfidˌbæk/USA pronunciation n. [uncountable]- a reaction or response to a process or activity:feedback from a speech.
- information derived from such a reaction or response:to use the feedback from an audience survey.
WordReference Random House Unabridged Dictionary of American English © 2024feed•back (fēd′bak′),USA pronunciation n. - Electronics
- the process of returning part of the output of a circuit, system, or device to the input, either to oppose the input (negative feedback) or to aid the input (positive feedback).
- See acoustic feedback.
- Computingthe furnishing of data concerning the operation or output of a machine to an automatic control device or to the machine itself, so that subsequent or ongoing operations of the machine can be altered or corrected.
- a reaction or response to a particular process or activity:He got very little feedback from his speech.
- evaluative information derived from such a reaction or response:to study the feedback from an audience survey.
- Psychologyknowledge of the results of any behavior, considered as influencing or modifying further performance. Cf. biofeedback.
- Physiology[Biol.]a self-regulatory biological system, as in the synthesis of some hormones, in which the output or response affects the input, either positively or negatively.
- noun, nominal use of verb, verbal phrase feed back 1915–20
Collins Concise English Dictionary © HarperCollins Publishers:: feedback /ˈfiːdˌbæk/ n - the return of part of the output of an electronic circuit, device, or mechanical system to its input, so modifying its characteristics. In negative feedback a rise in output energy reduces the input energy; in positive feedback an increase in output energy reinforces the input energy
- that part of the output signal fed back into the input
- the return of part of the sound output by a loudspeaker to the microphone or pick-up so that a high-pitched whistle is produced
- the whistling noise so produced
- the effect of the product of a biological pathway on the rate of an earlier step in that pathway
- information in response to an inquiry, experiment, etc
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