feedback


feedback
/feed"bak'/, n.
1. Electronics.
a. 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).
2. the 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.
3. a reaction or response to a particular process or activity: He got very little feedback from his speech.
4. evaluative information derived from such a reaction or response: to study the feedback from an audience survey.
5. Psychol. knowledge of the results of any behavior, considered as influencing or modifying further performance. Cf. biofeedback.
6. 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.
[1915-20; n. use of v. phrase feed back]

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      in biology, a response within a system (molecule, cell, organism, or population) that influences the continued activity or productivity of that system. In essence, it is the control of a biological reaction by the end products of that reaction.

      Similar usage prevails in mathematics, particularly in several areas of communication theory. In every instance, part of the output is fed back as new input to modify and improve the subsequent output of a system. See also cybernetics.

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Universalium. 2010.

Look at other dictionaries:

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  • Feedback — Sn Rückmeldung, Reaktion per. Wortschatz fach. (20. Jh.) Entlehnung. Entlehnt aus ne. feedback, dieses aus ne. feed einspeisen, füttern (aus ae. fēdan; Futter1) und ne. back zurück (Backbord). Zunächst technische Bezeichnung für die Kontrolle von …   Etymologisches Wörterbuch der deutschen sprache

  • feedback — s.n. (cib., psih.) Retroacţiune (1) care se manifestă la nivelul a diferite sisteme (biologice, tehnice etc.) în scopul menţinerii stabilităţii şi echilibrului lor faţă de influenţe exterioare; retroacţiune inversă, conexiune inversă, cauzalitate …   Dicționar Român

  • Feedback — Feedback: Das Fremdwort, das allgemeinsprachlich in der Bedeutung »Rückmeldung, Reaktion« verwendet wird, wurde in der Mitte des 20. Jh.s aus dem Engl. übernommen. Bei dem gleichbed. engl. feedback handelt es sich um eine Substantivierung des… …   Das Herkunftswörterbuch

  • feedback — developed its meaning in general use, ‘information about something from the people that have used it or been involved in it, as a basis for improving it’, in the 1960s: • They would like feedback from the last issue, articles from individuals and …   Modern English usage

  • feedback — n. 1. the process in which part of the output of a system is returned to its input. [WordNet 1.5] 2. response to an inquiry or experiment. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • feedback — (izg. fȋdbēk) m DEFINICIJA 1. tehn. a. povrat podataka o rezultatu nekog procesa, događaja i sl., posebno potreban da bi se obavio popravak ili kontrola; retroakcija b. na taj način prikupljeni podaci 2. lingv. u međuljudskoj komunikaciji… …   Hrvatski jezični portal

  • feedback — (ingl.; pronunc. [fíd bác]) m. Retroalimentación. * * * (voz inglesa) ► masculino LINGÜÍSTICA Funcionamiento de un sistema de comunicación estimulado por los resultados de la acción del mismo sistema …   Enciclopedia Universal

  • feedback — / fi:dbæk/, it. /fid bɛk/ s. ingl. [comp. di feed alimento e back indietro , propr. alimentazione retroattiva ], usato in ital. al masch. (tecnol.) [processo per cui l effetto risultante dall azione di un sistema (meccanismo, circuito e sim.) si… …   Enciclopedia Italiana


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