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feedback is a common noun.  Its two syllables, feed back, are pronounced FEED back.  There are 6 definitions.

Definition 1, in Electronics, Part a is:  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).  Part b is:  acoustic feedback: (in an audio system, especially a public address system) the feedback of sound from a loudspeaker to a microphone, often resulting in a whistling noise caused by electrical oscillations.  Source:  Webster's Encyclopedic Unabridged Dictionary

This link is to Definition 2.

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Associations with feedback, Definition 1, are:

electronics is a noun.  The only definition is:  (used with a singular verb) the science dealing with the theory, manufacture and use of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors.  Source:  Webster's Encyclopedic Unabridged Dictionary

output is a noun.  Definition 1 of 3 is:  The quantity put out or produced in a specified time; amount or rate of production, collective or individual, as from a mine or mines, or from a furnace or a country.  Source:  Practical Standard Dictionary

circuit is a noun.  Definition 1 of 7 is:  A passing or traveling round; a revolution.  Source:  Practical Standard Dictionary

system is a noun.  Definition 1 of 9 is: Orderly combination or arrangement, as of parts or elements, into a whole; specifically, such combination according to some rational principle; any methodic arrangement of parts.  Source:  Practical Standard Dictionary

device is a noun.  Definition 1 of 8 is:  Something invented and constructed for a special purpose; contrivance.  Source:  Practical Standard Dictionary

input is a noun.  Definition 1 of 3, in Mechanics is:  The amount of energy received.  Source:  Practical Standard Dictionary

either as a conjunction.  Definition 1 of 2 is:  In one of two or more cases, indeterminately or indifferently; used as a disjunctive correlative introducing a first alternative, the second and any other being preceded by or; as, either I shall go or he will come.  Source:  Practical Standard Dictionary

oppose as a verb.  Definition 1 of 5 is:  To act in opposition to; offer resistance; sometimes, to resist effectually.  Source:  Practical Standard Dictionary

aid as a verb, transitive.  Definition 1 of 2 is:  To render assistance to; promote the success of; assist; help; succor; help on.  Source:  Practical Standard Dictionary

audio system is a noun.  A group of electronic devices for the creation, recording, playback and/or amplification of sound.

public address system is a noun.  A microphone (and transmitter), amplifier and speaker(s); if in a single, hand held unit, battery powered.

loudspeaker is a noun.  An amplifier or receiving unit which increases the energy or the intensity of any communication received and converts it to audio.

microphone is a noun.  Definition 1 of 2, in Electronics, is:  An apparatus for magnifying faint sounds by the variation in electrical resistance.  Definition 2 of 2, in Radio, is:  A disk-like device used as a receiver of sound waves for transmission in the broadcasting of entertainments, speeches, music, songs, et cetera, as at a radio or television broadcasting studio.  Source:  A modification from the Practical Standard Dictionary

whistle as a noun.  Definition 2, ellipsis, (1) is:  A musical sound, more or less shrill, made without the use of the vocal chords, by sending the breath through a small orifice formed by contracting the lips.  Source:  An abridgement from the Practical Standard Dictionary

oscillate as a verb, transitive.  The only definition is:  To cause to swing to and fro.  Source:  Practical Standard Dictionary

oscillate as a verb, intransitive.  Definition 1 of 2 is:  To vibrate or swing back and forth, as a pendulum.  Definition 2 is:  To pass from one state to another and back again; fluctuate; waver.  Source:  Practical Standard Dictionary


Definition 2 is:  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.  Source:  Webster's Encyclopedic Unabridged Dictionary

This link is to Definition 3.  This link is to the top of this page.

Associations with feedback, Definition 2, are:

furnish as a verb, transitive.  Definition 2 of 2 is:  To supply; yield.  Source.  Source:  Practical Standard Dictionary

datum is a noun.  The only definition is:  A known, assumed, or conceded fact; number, quantity, or point:  used chiefly in the plural:  data.  Source:  Practical Standard Dictionary


Definition 3 is:  A reaction or response to a particular process or activity.  Source:  Webster's Encyclopedic Unabridged Dictionary

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This link is to Definition 4.  This link is to the top of this page.

Associations with feedback, Definition 3, are:

reaction is a noun.  Definition 5 of 5, in Psychophysics is:  The partial or total response, made in the first instance, to any kind or degree of stimulation.  Source:  Practical Standard Dictionary

response  is a noun.  Definition 1 of 2 is:  The act of responding, or that which is responded; an answer; reply.  Source:  Practical Standard Dictionary

particular  is a noun.  Definition 1 of 5 is:  A separate matter or item, as of a class or number.  Definition 2 is:  An individual instance; a single or separate case; a given fact that may be brought under or be the ground of a generalization.  Source:  Practical Standard Dictionary

process as a noun.  Definition 1 of 9 is:  A course or method of operations, natural or artificial; a systematic series of operations in the production of something; as, a metallurgical process.  Source:  Practical Standard Dictionary

activity is a noun.  Definition 1 of 2 is:  The state or quality of being active; action; vigorous movement; active force or operation.  Source:  Practical Standard Dictionary


Definition 4 is:  Evaluative information derived from a reaction or response to a particular process or activity.  Source:  An extrapolation from Webster's Encyclopedic Unabridged Dictionary

This link is to Definition 5.  This link is to the top of this page.

Associations with feedback, Definition 4, are:

evaluative is an adjective.  That which can fix the value of:  that which can estimate the force of; that which allows appraisal.

information is a noun.  Definition 1 of 4 is:  Knowledge acquired or derived.  Definition 2 is:  Timely or specific knowledge.  Source:  Practical Standard Dictionary

derived as a verb, transitive.  Definition 1 of 5 is:  Drawn or received as from a source, principle or root.

reaction is a noun.  Definition 5 of 5, in Psychophysics is:  The partial or total response, made in the first instance, to any kind or degree of stimulation.  Source:  Practical Standard Dictionary

response  is a noun.  Definition 1 of 2 is:  The act of responding, or that which is responded; an answer; reply.  Source:  Practical Standard Dictionary

particular  is a noun.  Definition 1 of 5 is:  A separate matter or item, as of a class or number.  Definition 2 is:  An individual instance; a single or separate case; a given fact that may be brought under or be the ground of a generalization.  Source:  Practical Standard Dictionary

process as a noun.  Definition 1 of 9 is:  A course or method of operations, natural or artificial; a systematic series of operations in the production of something; as, a metallurgical process.

activity is a noun.  Definition 1 of 2 is:  The state or quality of being active; action; vigorous movement; active force or operation.  Source:  Practical Standard Dictionary


Definition 5, in Psychology,  is:  Knowledge of the results of any behavior, considered as influencing or modifying further performance.  Source:  Webster's Encyclopedic Unabridged Dictionary

This link is to Definition 6.  This link is to the top of this page.

Associations with feedback, Definition 5, are:

psychology  is a noun.  The only definition is:  The science of the human mind or soul and its operations, powers, and functions; also, a treatise on this science.  Source:  Practical Standard Dictionary

knowledge is a noun.  Definition 1 of 6 is:  A result or product of knowing. Specifically:  (1) Information; learning; scholarship. (2) Practical understanding or skill in anything.  ellipsis.  Source:  Practical Standard Dictionary

result as a noun.  Definition 1 of 3 is:  The outcome of an action, course, process, or agency; consequence; effect; conclusion.  Source:  Practical Standard Dictionary

behavior is a noun.  Definition 1 of 3 is:  Manner of conducting oneself; demeanor; deportment.  Source:  Practical Standard Dictionary

consider as a verb, transitive.  Definition 2 of 7 is:  To think to be; estimate.  Source:  Practical Standard Dictionary

influence is a noun.  Definition 1 of 5 is:  The flowing into, or influx, of power, whether in the form of motive or ability; the property or the process of producing modifications, especially when slow or permanent; as, the influence of example.  Source:  Practical Standard Dictionary

modify is a verb, transitive.  Definition 1 of 4 is:  To make somewhat different; vary; as, to modify the details of a plan.  Source:  Practical Standard Dictionary

further as an adjective.  Definition 2 of 2 is:  Wider or fuller; additional.  Source:  Practical Standard Dictionary

performance is a noun.  Definition 1 of 2 is:  The act of performing; also, the thing done; execution; completion; action; achievement.  Source:  Practical Standard Dictionary


Definition 6, in Biology, is:  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.  Source:  Webster's Encyclopedic Unabridged Dictionary

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Associations with feedback, Definition 6, are:

biology  is a noun.  The only definition is:  The science of life or living organisms.  Source:  Practical Standard Dictionary

self-regulatory is an adjective.  The only definition is:  used for or capable of controlling or adjusting oneself or itself;  a self-regulatory device.  Source:  A modification from Webster's Encyclopedic Unabridged Dictionary

biological is an adjective.  The only definition is:  Pertaining to the science of life or living organisms.  Source:  An adaptation from the Practical Standard Dictionary

system is a noun.  Definition 7 of 9, in Biology is:  (1) An assemblage of organic structures composed of similar elements and combined for the same general functions; as, the nervous system.  (2) The entire body, taken as a functional whole.  Source:  Practical Standard Dictionary

synthesis is a noun.  Definition 1 of 5 is:  The putting of different things together; combination of separate substances, elements, or subordinate parts into a new form:  composition; construction.  Source:  Practical Standard Dictionary

hormone is a noun.  The only definition is:  A chemical product of an organ which produces activity in another organ by way of the blood-stream.  Source:  Practical Standard Dictionary

output is a noun.  Definition 1 of 3 is:  The quantity put out or produced in a specified time; amount or rate of production, collective or individual, as from a mine or mines, or from a furnace or a country.  Source:  Practical Standard Dictionary

response is a noun.  Definition 1 of 2 is:  The act of responding, or that which is responded; an answer; reply.  Source:  Practical Standard Dictionary

affect as a verb, transitive.  Definition 1 of 2 is:  To act upon; influence.  Source:  Practical Standard Dictionary

input is a noun.  Definition 1 of 3, in Mechanics is:  The amount of energy received.  Source:  Practical Standard Dictionary

either as a conjunction.  Definition 1 of 2 is:  In one of two or more cases, indeterminately or indifferently:  used as a disjunctive correlative introducing a first alternative, the second and any other being preceded by or; as, either I shall go or he will come.  Source:  Practical Standard Dictionary

positive as an adjective.  Definition 9 of 31 is:  emphasizing what is laudable, hopeful, or to the good; constructive:  a positive attitude toward the future; positive things to say about a painting.  Source:  Webster's Encyclopedic Unabridged Dictionary

negative as an adjective.  emphasizing what is undesirable, hopeless, or to the bad; destructive:  a negative attitude toward the future;  negative things to say about a painting.  Source:  a modification from Webster's Encyclopedic Unabridged Dictionary


The plural form of feedback is:  feedbacks.  The possessive form is:  feedback's.

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