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1. (n.) perturbation
the act of perturbing.
2. perturbation
the state of being perturbed.
3. perturbation
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 it.
Etymology: (1790–1800; < NL, = L per-per - +tussis a cough)
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| Definition of 'perturbation' |
Princeton's WordNet |
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1. (noun) disturbance, perturbation, upset
an unhappy and worried mental state
"there was too much anger and disturbance"; "she didn't realize the upset she caused me"
2. (noun) perturbation
(physics) a secondary influence on a system that causes it to deviate slightly
3. (noun) perturbation, disturbance
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. (noun) perturbation, fluster
a disposition that is confused or nervous and upset
5. (noun) disruption, perturbation
the act of causing disorder
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| Definition of 'perturbation' |
Webster Dictionary |
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1. (noun) perturbation
the act of perturbing, or the state of being perturbed; esp., agitation of mind
2. (noun) perturbation
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
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Definitions of perturbation 
