jitter

American  

[jit-er] / ˈdʒɪt ər /

noun

1. (the) jitters, nervousness; a feeling of fright or uneasiness.

   Every time I have to make a speech, I get the jitters.

2. fluctuations in the image on a television screen or in copy received by facsimile transmission, caused by interference or by momentary failures of synchronization.

3. Computers. delay or unevenness in an audio or video signal caused by inconsistency in the interval between the sending and receiving of data packets over a network connection (also used attributively).

   Using this algorithm dramatically increases throughput while reducing jitter and end-to-end delay.

   The jitter buffer collects incoming data packets and sends them on to the receiver at a consistent rate.

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verb (used without object)

1. to feel or express nervousness or behave nervously.

   There are some people who jitter about every new technology.

   As soon as I’m five minutes late coming home, my parents start jittering.

2. to move rapidly and unevenly, often with small movements.

   My heartbeat jittered as I waited for the boss in her office.

   I watched as his expert fingers jittered across the keyboard.

3. (of transmitted images or sounds) to undergo delayed or uneven reception.

   How can I keep the picture from jittering when I’m gaming?

   I missed parts of the meeting because my computer's audio jittered.

4. to vary or fluctuate slightly.

   The difference between time allotted and time used will likely jitter by a day or two for each phase of your project.

verb (used with object)

1. to cause to move or shake rapidly, often with small movements.

   We drove over a rough patch that jittered the car a bit.

   He slammed the door so hard it jittered the window blinds.

2. Computers. to intentionally introduce slight variation or fluctuation in (digital images or sounds) in order to achieve a desired effect; stagger or offset.

   I had the program jitter the data points to avoid overlap when graphing the results.

   You can create a trailing blur behind a moving object if you jitter the object, dimming it at each successive position.

jitter British  

/ ˈdʒɪtə /

verb

1. (intr) to be anxious or nervous

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noun

1. nervousness and anxiety

2. electronics small rapid variations in the amplitude or timing of a waveform arising from fluctuations in the voltage supply, mechanical vibrations, etc

Etymology

Origin of jitter

First recorded in 1920–25; variant of chitter “to shiver” ( Middle English chiteren ), modification or variant of chatter

Example Sentences

Reducing timing jitter on a small scale reduces power usage and makes it more usable in everyday devices.

From Science Daily • Mar. 6, 2024

"It also did not show jitter from jets as a result of uneven sublimation of ice on its surface, nor a substantial evolution in its spin period, as often witnessed for evaporating comets."

From Salon • Mar. 26, 2023

“You’ve got tighter images; you’ve got less jitter; the detectors are performing a bit better,” Beichman says.

From Scientific American • Sep. 22, 2022

Although most of the yearly jitter is due to events like hurricanes and earthquakes, a tiny-but-regular 6-year wobble in day length has emerged.

From Science Magazine • Mar. 30, 2022

He had seen Miss Bessie jitter away from P. T., but that was different.

From "Bridge to Terabithia" by Katherine Paterson

Related Words

• convulse
• pulsate
• shiver
• shudder
• throb
• tremble