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perturbation    音标拼音: [p,ɚtɚb'eʃən]
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perturbation
n 1: an unhappy and worried mental state; "there was too much
anger and disturbance"; "she didn't realize the upset she
caused me" [synonym: {disturbance}, {perturbation}, {upset}]
2: (physics) a secondary influence on a system that causes it to
deviate slightly
3: activity that is a malfunction, intrusion, or interruption;
"the term `distress' connotes some degree of perturbation and
emotional upset"; "he looked around for the source of the
disturbance"; "there was a disturbance of neural function"
[synonym: {perturbation}, {disturbance}]
4: a disposition that is confused or nervous and upset [synonym:
{perturbation}, {fluster}]
5: the act of causing disorder [synonym: {disruption},
{perturbation}]

Perturbation \Per`tur*ba"tion\, n. [L. perturbatio: cf. F.
perturbation.]
1. The act of perturbing, or the state of being perturbed;
esp., agitation of mind.
[1913 Webster]

2. (Astron.) A disturbance in the regular elliptic or other
motion of a heavenly body, produced by some force
additional to that which causes its regular motion; as,
the perturbations of the planets are caused by their
attraction on each other. --Newcomb.
[1913 Webster]

235 Moby Thesaurus words for "perturbation":
ado, aggravation, agitation, all-overs, angst, animation, anxiety,
anxiety hysteria, anxiety neurosis, anxious bench, anxious concern,
anxious seat, anxiousness, apprehension, apprehensiveness, arousal,
arousing, baffle, bafflement, befuddlement, bewilderment, bluster,
bobbery, boil, boiling, bother, botheration, brouhaha, bustle,
cankerworm of care, care, chaos, chills of fear, churn, cloud,
cold creeps, cold shivers, cold sweat, commotion, concern,
concernment, confoundment, confusion, conturbation, convulsion,
creeps, daze, derangement, dilemma, disarrangement, disarray,
disarticulation, discombobulation, discomfiture, discomposure,
disconcert, disconcertedness, disconcertion, disconcertment,
disharmony, dishevelment, disintegration, disjunction, dislocation,
disorder, disorderliness, disorganization, disorientation,
disproportion, disquiet, disquietude, disruption, distress,
disturbance, dread, ebullience, ebullition, eddy, effervescence,
electrification, embarrassment, embroilment, enigma, entropy,
exacerbation, exasperation, excitation, excitement, exhilaration,
fear, fear and trembling, feery-fary, ferment, fermentation, fever,
feverishness, fidgets, fix, flap, flummox, flurry, fluster,
flutter, flutteration, fog, foment, fomentation, foreboding,
forebodingness, frenzy, fuddle, fuddlement, fume, fuss,
galvanization, goose bumps, gooseflesh, haphazardness, haze,
heartquake, horripilation, hubbub, hurly-burly, hurry,
hurry-scurry, incitement, incoherence, indiscriminateness,
inflammation, infuriation, inharmonious harmony, inquietude,
insanity, irregularity, irritation, jam, jimjams, jitters, jumble,
jumpiness, lathering up, maelstrom, malaise, maze, mess,
misarrangement, misgiving, mist, moil, most admired disorder,
muddle, muddlement, mystery, nerviness, nervous tension,
nervousness, nonplus, nonsymmetry, nonuniformity, overanxiety,
palpitation, pell-mell, perplexity, pickle, pins and needles,
plight, pother, predicament, problem, promiscuity, promiscuousness,
provocation, pucker, puzzle, puzzlement, quaking, quandary,
quiver of terror, randomness, restlessness, riddle, roil, rout,
row, ruffle, scrape, seethe, seething, shivers, shuffle, shuffling,
solicitude, steaming up, stew, stimulation, stimulus, stir,
stirring, stirring up, strain, suspense, sweat, swirl, swirling,
swivet, tension, thrill of fear, tizzy, to-do, trepidation,
trepidity, trouble, tumult, tumultuation, turbidity, turbulence,
turmoil, twitter, unassuredness, unease, uneasiness, unquietness,
unrest, unsettlement, unsymmetry, ununiformity, uproar, upset,
vexation, vortex, whipping up, whirl, working up, yeastiness,
zeal


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  • PERTURBATION Definition Meaning - Merriam-Webster
    The meaning of PERTURBATION is the action of perturbing : the state of being perturbed How to use perturbation in a sentence
  • Perturbation theory - Wikipedia
    In mathematics and applied mathematics, perturbation theory comprises methods for finding an approximate solution to a problem, by starting from the exact solution of a related, simpler problem [1][2] A critical feature of the technique is a middle step that breaks the problem into "solvable" and "perturbative" parts [3]
  • PERTURBATION | English meaning - Cambridge Dictionary
    PERTURBATION definition: 1 worry 2 a small change in the regular movement of an object: 3 worry Learn more
  • PERTURBATION definition and meaning | Collins English Dictionary
    A perturbation is a small change in the movement, quality, or behaviour of something, especially an unusual change
  • perturbation - Wiktionary, the free dictionary
    perturbation (countable and uncountable, plural perturbations) (uncountable) Agitation; the state of being perturbed
  • perturbation, n. meanings, etymology and more - Oxford English Dictionary
    What does the noun perturbation mean? There are six meanings listed in OED's entry for the noun perturbation , two of which are labelled obsolete See ‘Meaning use’ for definitions, usage, and quotation evidence
  • Perturbation - Definition, Meaning Synonyms - Vocabulary. com
    The noun perturbation means "anxiety or uneasiness " Perturbation means "a state of agitation," or it can refer to whatever's causing the anxiety Your brother's weird haircut could be the perturbation that's upsetting your mom at Thanksgiving dinner
  • What does perturbation mean? - Definitions. net
    Perturbation is a deviation or disturbance from an original state or path, caused by outside influences It can be generally used in various fields like physics, astronomy, engineering, economics, and mathematics to describe small changes in a system or model
  • Perturbation - Wikipedia
    Perturbation or perturb may refer to: Perturbation theory, mathematical methods that give approximate solutions to problems that cannot be solved exactly; Perturbation (geology), changes in the nature of alluvial deposits over time; Perturbation (astronomy), alterations to an object's orbit (e g , caused by gravitational interactions with other





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