IPA: /ɪˈfɛktər/
KK: /ɪˈfɛktər/
A part of the body, like a muscle or gland, that reacts to signals from the nervous system or other stimuli.
The effector in the reflex arc quickly contracts the muscle to pull the hand away from the hot surface.
Effector → It is formed from "effect" (from Latin "effectus", meaning a result or outcome) and "-or" (meaning one who performs an action). The word "effector" refers to one who brings about a result or effect.
Think of someone who brings about a result or effect — that's what an effector does, as it combines the idea of an outcome with the action of performing.