# effected vs effector

> English confusable word pair

## The two words

### effected
*verb · IPA /ɪˈfɛktɪd/ · frequency rank #19,321*
simple past and past participle of effect

### effector
*noun · frequency rank #46,439*
Any muscle, organ etc. that can respond to a stimulus from a nerve.

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