Jitter Definition

jĭtər
jittered, jitters
verb
To be unsteady with many small, rapid movements.
Webster's New World
To be nervous; have the jitters; fidget.
Webster's New World
noun
An unsteady condition in which there are many small, rapid movements.
Webster's New World
A jittering movement; a tic.
American Heritage
A fit of nervousness. Often used with the.
American Heritage
Uneven fluctuations in a video or audio signal, causing distortion.
Webster's New World
An unwanted variation in the arrival times of a sequence of data packets over a digital network.
American Heritage
Synonyms:
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other
Uncertain variation in the timing of a received signal as compared to the timing of the transmitted signal. All signals experience some amount of delay, or latency, as they propagate across a circuit as, even at the speed of light, it takes some amount of time to travel the distance from one point to another. The timing of the signal elements remains consistent, however, barring changes in the length or other physical characteristics of the circuit caused by variations in temperature or other external forces. As devices are added to a circuit, even relatively simple devices such as amplifiers and repeaters performing relatively simple processes, additional delay is introduced, and the potential for variability in delay is increased because of factors such as fluctuations in power sources and faulty internal components. Should variability exceed specified tolerances, the timing of the pulses can be unacceptably irregular, and the receiving device may be unable to interpret the received signal correctly.
Webster's New World Telecom
Variability in latency of a block, cell, frame, packet, or other message unit. Data message units can suffer jitter not only due to issues of signal jitter, but also because they may encounter different levels of congestion, which may cause them to spend different amounts of time in queues.These factors, and others, contribute to jitter. Some applications, such as e-mail, are tolerant of jitter, while other applications, such as real-time, uncompressed voice, are highly intolerant of jitter.
Webster's New World Telecom

Undesirable rapid or jumpy movement of images, such as those displayed on a television or computer monitor. Jitter can be caused by circuit instability or faulty system components. See also latency, propagation delay, and velocity of propagation (Vp).

Webster's New World Telecom
idiom
the jitters
  • a very uneasy, nervous feeling; the fidgets
Webster's New World

Other Word Forms of Jitter

Noun

Singular:
jitter
Plural:
jitters

Idioms, Phrasal Verbs Related to Jitter

  • the jitters

Origin of Jitter

  • Possibly alteration of chitter (“tremble, shiver”), from Middle English chittern (“to twitter, chatter”)

    From Wiktionary

  • Perhaps alteration of chitter

    From American Heritage Dictionary of the English Language, 5th Edition

  • jit +‎ -er

    From Wiktionary

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