dither

v. hesitate; tremble; be excited or agitated

n. state of confusion, extreme agitation or excitement; vacillation, hesitation

Dither is an intentionally applied form of noise, used to randomize quantization error, thereby preventing large-scale patterns such as contouring that are more objectionable than uncorrelated noise. Dither is routinely used in processing of both digital audio and digital video data, and is often one of the last stages of audio production to compact disc.
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Noun
1. an excited state of agitation; "he was in a dither"; "there was a terrible flap about the theft"
(synonym) pother, fuss, tizzy, flap
(hypernym) agitation
(derivation) flap, pother
Verb
1. act nervously; be undecided; be uncertain
(hypernym) fret
2. make a fuss; be agitated
(synonym) flap, pother
(hypernym) fuss, niggle, fret
(derivation) pother, fuss, tizzy, flap

Synonyms and related words:
ache, aching, agitation, all-overs, alternate, babble, back and fill, be cold, be stupid, blab, blabber, blather, blether, blither, bob, bobble, bother, bounce, bump, burble, cackle, change, chat, chatter, chilblains, chill, chilliness, chilling, clack, clatter, cold creeps, cold shivers, cold sweat, confusion, creeps, cryopathy, didder, disquiet, disquietude, dithers, dote, drivel, drool, duck bumps, equivocate, falter, fidgetiness, fidgets, flap, fluctuate, fluster, flusteration, flustration, flutter, foofaraw, freeze, freeze to death, fret, frostbite, fuss, gab, gabble, gas, gibber, gibble-gabble, go on, goose bumps, goose pimples, gooseflesh, gossip, grimace, grow cold, gush, halt, hang in doubt, have a chill, have goose pimples, haver, heaving, heebie-jeebies, hesitate, horripilate, horripilation, inquietude, jabber, jar, jaw, jerk, jig, jigget, jitters, jog, joggle, jolt, jostle, jumps, kibe, lather, lose heat, maunder, natter, oscillate, palaver, palpitation, panting, patter, pendulate, perish with cold, pitapat, pitter-patter, pother, pour forth, prate, prattle, pucker, quake, quaking, quaver, quavering, quiver, quivering, quivers, ramble on, rattle, rattle on, reel off, restlessness, rictus, run on, shake, shakes, shaking, shift, shilly-shally, shiver, shivering, shivers, shock, shudder, slobber, spout, spout off, stagger, stew, stop to consider, sweat, swivet, talk away, talk nonsense, talk on, teeter, tergiversate, think twice, throb, throbbing, tic, tittle-tattle, tizzy, totter, tremble, trembles, trembling, tremor, trepidation, trepidity, tumult, turbulence, turmoil, twaddle, twattle, twitch, twitter, twitteration, unrest, vacillate, vary, waffle, waver, whiffle, willies, wobble, yak, yakkety-yak
  

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