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Perturbance (noun)
perturbation
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Perturbation (noun)
Agitation; the state of being perturbed
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Perturbation (noun)
A small change in a physical system, or more broadly any definable system (such as a biological or economic system)
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Perturbation (noun)
Variation in an orbit due to the influence of external bodies
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Perturbance (noun)
perturbation.
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Perturbation (noun)
anxiety; mental uneasiness
“she sensed her friend’s perturbation”
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Perturbation (noun)
a cause of anxiety or uneasiness
“Frank’s atheism was more than a perturbation to Michael”
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Perturbation (noun)
a deviation of a system, moving object, or process from its regular or normal state or path, caused by an outside influence
“these shifts and swings in wildlife populations are possibly related to climatic perturbations”
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Perturbation (noun)
a minor deviation in the course of a celestial body, caused by the attraction of a neighbouring body.