Repeater definition

rĭ-pētər
Frequency:
One that repeats.
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A watch or clock with a pressure-activated mechanism that strikes the hour.
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A repeating firearm.
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A device used to amplify digital or analog signals in order to strengthen them for retransmission, as on a computer network or in telephone or radio transmission.
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A student who repeats a course, usually one that has been failed.
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One who fraudulently votes more than once in a single election.
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One who has been convicted of wrongdoing more than once, especially for the same offense.
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A person or thing that repeats.
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A watch or clock which, upon activation of a spring, will strike the time, sometimes to the nearest minute.
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A person who has been convicted a number of times for violating the law.
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A person who fraudulently votes more than once in the same election.
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A device, broadcasting station, etc. that receives electrical signals and then amplifies and retransmits them.
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(educ.) A student who fails a course or grade, and then repeats it.
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A device that amplifies, reshapes, and retimes an input digital signal for retransmission. In an electrically based system, the repeater essentially guesses the binary value (1 or 0) of the attenuated incoming signal, including any accumulated noise, based on its relative voltage level and the relative time, and regenerates a stronger signal of the same value without the noise. The repeater also reshapes and retimes the signal, essentially redefining the distinct bit values and restoring the bit pace. In combination, these processes considerably enhance the signal quality, as compared to the simple amplification process performed by an amplifier. In a fiber optic transmission system (FOTS), the repeater comprises a light detector and a light source, positioned back-to-back.The detector receives an attenuated optical signal, converts it to an amplified electrical signal, reshapes and retimes it, converts it back to optical signal, and retransmits it. Such optical repeaters are characterized as being optical-electrical-optical (OEO) in nature.A repeater also may perform other signal processing functions. A satellite repeater, for example, also performs frequency translation, or frequency shifting, in order to differentiate in frequency the uplink and downlink signals, thereby to avoid their mutual interference. The spacing of repeaters is sensitive to a variety of factors, including the specifics of the transmission medium and the frequency of the carrier signal. See also amplifier, attenuation, and signal.
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(electronics) An electronic device that receives a weak or low-level signal and retransmits it at a higher level or higher power.
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(firearms) A gun that has a store of cartridges and does not need reloading after each shot.
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In ufology and similar studies, a person who regularly sees unexplained sightings of paranormal phenomena.

Note - this term is more commonly used by skeptics of the paranormal, and implies that the witness lacks credibility.

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A watch with a striking apparatus which, upon pressure of a spring, will indicate the time, usually in hours and quarters.
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(US) One who votes more than once at an election.
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A repeating decimal.
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(nautical) A pennant used to indicate that a certain flag in a hoist of signal is duplicated.

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Other Word Forms

Noun

Singular:
repeater
Plural:
repeaters

Origin of repeater