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Perturbation



[pur-ter-bey-shuh n] /ˌpɜr tərˈbeɪ ʃən/

noun
1.
the act of .
2.
the state of being .
3.
mental disquiet, disturbance, or agitation.
4.
a cause of mental disquiet, disturbance, or agitation.
5.
Astronomy. deviation of a celestial body from a regular orbit about its primary, caused by the presence of one or more other bodies that act upon the celestial body.
/ˌpɜːtəˈbeɪʃən/
noun
1.
the act of perturbing or the state of being perturbed
2.
a cause of disturbance or upset
3.
(physics) a secondary influence on a system that modifies simple behaviour, such as the effect of the other electrons on one electron in an atom
4.
(astronomy) a small continuous deviation in the inclination and eccentricity of the orbit of a planet or comet, due to the attraction of neighbouring planets
n.

late 14c., from Old French perturbacion “disturbance, confusion” (14c.) and directly from Latin perturbationem (nominative perturbatio) “confusion, disorder, disturbance,” noun of action from past participle stem of perturbare (see perturb).
perturbation
(pûr’tər-bā’shən)

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  • Perturbation theory

    perturbation theory A set of mathematical methods for obtaining approximate solutions to complex equations for which no exact solution is possible or known, generally involving an iterative algorithm in which each new term contributing to the solution has less significance than the last. In quantum physics, Feynman diagrams are used to calculate the terms for […]

  • Perturbative

    [pur-ter-bey-tiv, per-tur-buh-tiv] /ˈpɜr tərˌbeɪ tɪv, pərˈtɜr bə tɪv/ adjective 1. having a tendency to perturb; disturbing.



  • Perturbator

    [per-turb] /pərˈtɜrb/ verb (used with object) 1. to disturb or disquiet greatly in mind; agitate. 2. to throw into great disorder; derange. 3. Astronomy. to cause in the orbit of (a celestial body). /pəˈtɜːb/ verb (transitive; often passive) 1. to disturb the composure of; trouble 2. to throw into disorder 3. (physics, astronomy) to cause […]

  • Perturbed

    [per-turb] /pərˈtɜrb/ verb (used with object) 1. to disturb or disquiet greatly in mind; agitate. 2. to throw into great disorder; derange. 3. Astronomy. to cause in the orbit of (a celestial body). /pəˈtɜːb/ verb (transitive; often passive) 1. to disturb the composure of; trouble 2. to throw into disorder 3. (physics, astronomy) to cause […]



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