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perturbation

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noun per·tur·ba·tion \ˌpər-tər-ˈbā-shən, ˌpər-ˌtər-\

Simple Definition of perturbation

  • : a change in the normal state or regular movement of something

  • : the state of being worried or upset

Source: Merriam-Webster's Learner's Dictionary

Full Definition of perturbation

  1. 1 :  the action of perturbing :  the state of being perturbed

  2. 2 :  a disturbance of motion, course, arrangement, or state of equilibrium; especially :  a disturbance of the regular and usually elliptical course of motion of a celestial body that is produced by some force additional to that which causes its regular motion

perturbational

play \-shnəl, -shə-nəl\ adjective

Examples of perturbation in a sentence

  1. a perturbation in the planet's orbit

  2. <in her perturbation she kept calling her son, a freshman, to see if everything was all right at college>



14th Century

First Known Use of perturbation

14th century



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