IPA: /ˈbiːtə/
KK: /ˈbitər/
A person or device that beats something, often used in cooking or hunting contexts.
The chef used a beater to mix the ingredients smoothly.
Beater → It is formed from "beat" (from Old English "beatan", meaning to strike or hit) and "-er" (meaning a person who). A beater is a person or thing that strikes or hits something.
Think of someone who 'strikes' ('beat') something — the '-er' just means a person. A beater is someone who strikes.