# perturbation

> English word · Noun · frequency rank #43,839

## Definitions
1. Agitation; the state of being perturbed.
2. A small change in a physical system, or more broadly any definable system (such as a biological or economic system).
3. Variation in an orbit due to the influence of external bodies.

## Etymology
Borrowed from Middle French perturbation, from Old French perturbacion, from Latin perturbatio.

## Common misspellings (19)
`eprturbation`, `perrturbation`, `pertrubation`, `pertturbation`, `pertubration`, `perturabtion`, `perturbaiton`, `perturbasion`, `perturbatino`, `perturbationn`, `perturbatoin`, `perturbattion`, `perturbbation`, `perturbtaion`, `perturrbation`, `perutrbation`, `petrurbation`, `pperturbation`, `preturbation`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/perturbation