Definition

A device that causes movement or controls a mechanism, often used in machines or systems to perform specific actions.

Example

The engineer installed an actuator to control the movement of the robotic arm.

Conversation

Have you ever heard about how an actuator works in robotics?

Yeah, I think it’s the part that moves things, right?

Exactly! It's responsible for controlling mechanical components.

That sounds really interesting, especially for automation projects.

Synonyms & Antonyms

Root Explanation

Actuator → It is formed from "actuare" (meaning to set in motion) and the suffix "-or" (meaning one who or that which). The word "actuator" refers to a device that causes something to move or operate.

Memory Tip

Think of a device that 'sets in motion' — 'actuare' means to act or move, and '-or' indicates it is the one doing the action.

Visually Confused Words