English Dictionary

perturbation

noun

(uncountable) Agitation; the state of being perturbed / (countable) A small change in a physical system, or more broadly any definable system (such as a biological or economic system)

The perturbation in the crowd grew as the protest intensified.

意味（1）

(uncountable) Agitation; the state of being perturbed

But her mind had never been in such perturbation; and it needed a very strong effort to appear attentive and cheerful till the usual hour of separating allowed her the relief of quiet reflection.

意味（2）

(countable) A small change in a physical system, or more broadly any definable system (such as a biological or economic system)

Natures that haue much Heat, and great and violent deſires and Perturbations, are not ripe for Action, till they haue paſſed the Meridian of their yeares: As it was with Iulius Cæſar, and Septimius Seuerus.

意味（3）

(countable, astronomy, physics) Variation in an orbit due to the influence of external bodies