IPA: /ˈstɪmjʊleɪtə/
KK: /ˈstɪmjʊleɪtə/
A person or device that causes something to become more active or to increase in intensity.
The doctor used a stimulator to help the patient recover faster.
Stimulator → It is formed from "stimulare" (meaning to incite or urge on) and the suffix "-or" (meaning one who). The word "stimulator" refers to one who incites or urges on, often in a context of encouraging activity or response.
Think of someone who 'urges on' ('stimulare') others to take action — that's what a stimulator does.