What does perturbation mean?

Definitions for perturbation
ˌpɜr tərˈbeɪ ʃənper·tur·ba·tion

This dictionary definitions page includes all the possible meanings, example usage and translations of the word perturbation.

Princeton's WordNet

  1. disturbance, perturbation, upsetnoun

    an unhappy and worried mental state

    "there was too much anger and disturbance"; "she didn't realize the upset she caused me"

  2. perturbationnoun

    (physics) a secondary influence on a system that causes it to deviate slightly

  3. perturbation, disturbancenoun

    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"

  4. perturbation, flusternoun

    a disposition that is confused or nervous and upset

  5. disruption, perturbationnoun

    the act of causing disorder


  1. perturbationnoun

    Agitation; the state of being perturbed

  2. perturbationnoun

    A small change in a physical system, or more broadly any definable system (such as a biological or economic system)

  3. perturbationnoun

    Variation in an orbit due to the influence of external bodies

  4. Etymology: perturb + -ation

Samuel Johnson's Dictionary

  1. Perturbationnoun

    Etymology: perturbatio, Lat. perturbation, Fr.

    Love was not in their looks, either to God,
    Nor to each other; but apparent guilt,
    And shame, and perturbation, and despair. John Milton.

    The soul as it is more immediately and strongly affected by this part, so doth it manifest all its passions and perturbations by it. John Ray, on the Creation.

    Natures, that have much heat, and great and violent desires and perturbations, are not ripe for action, till they have passed the meridian of their years. Francis Bacon, Essays.

    Although the long dissentions of the two houses had had lucid intervals, yet they did ever hang over the kingdom, ready to break forth into new perturbations and calamities. Francis Bacon.

    O polish’d perturbation! golden care!
    That keep’st the ports of slumber open wide
    To many a watchful night: sleep with it now,
    Yet not so sound, and half so deeply sweet,
    As he, whose brow with homely biggen bound,
    Sleeps out the watch of night. William Shakespeare, Henry IV.

    Restore yourselves unto your temper, fathers;
    And, without perturbation, hear me speak. Ben Jonson.

Webster Dictionary

  1. Perturbationnoun

    the act of perturbing, or the state of being perturbed; esp., agitation of mind

  2. Perturbationnoun

    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

  3. Etymology: [L. perturbatio: cf. F. perturbation.]


  1. Perturbation

    In astronomy, perturbation is the complex motion of a massive body subject to forces other than the gravitational attraction of a single other massive body. The other forces can include a third body, resistance, as from an atmosphere, and the off-center attraction of an oblate or otherwise misshapen body.

How to pronounce perturbation?

How to say perturbation in sign language?


  1. Chaldean Numerology

    The numerical value of perturbation in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of perturbation in Pythagorean Numerology is: 6

Examples of perturbation in a Sentence

  1. Charles Schroeder:

    These natural materials are easily degradable and require precise and controlled conditions for storage, preparation, and transport, with even a slight perturbation in the environmental controls, a batch of biologics could degrade and become unusable.

  2. Alien Life -RSB- Raymond:

    Any perturbation has the potential to have catastrophic consequences.

  3. Gretchen Frueh-Green:

    It's our history, it's the Earth's history, and if we perturb it we don't know how fast it will recover, or what influence the perturbation would have on ocean chemistry.

  4. Vladan Kuzmanović:

    Sabism is a modern synthesis, resynthesis, poetry of perspective, nugget of facts, conglomeration, cultart, the coarsening of the “new reality”, proart, new nature, perturbation, grandart, euphony, exaltation, multiculture, word act, triad, genesis.

  5. Vladan Kuzmanović:

    Art is an inventive urge, savagism, unrestrained, primordial, excess, perturbation, acme, enthusiasm, improvisation.

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Translations for perturbation

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"perturbation." Definitions.net. STANDS4 LLC, 2023. Web. 9 Jun 2023. <https://www.definitions.net/definition/perturbation>.

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    standing above others in quality or position
    • A. equivalent
    • B. ectomorphic
    • C. eminent
    • D. contiguous

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