Perturbance (noun)
perturbation
Perturbation (noun)
Agitation; the state of being perturbed
Perturbation (noun)
A small change in a physical system, or more broadly any definable system (such as a biological or economic system)
Perturbation (noun)
Variation in an orbit due to the influence of external bodies
Perturbance (noun)
perturbation.
Perturbation (noun)
anxiety; mental uneasiness
“she sensed her friend’s perturbation”
Perturbation (noun)
a cause of anxiety or uneasiness
“Frank’s atheism was more than a perturbation to Michael”
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”
Perturbation (noun)
a minor deviation in the course of a celestial body, caused by the attraction of a neighbouring body.