Definition

A circular object with teeth around its edge that is used to transmit motion or force in machines.

Example

The mechanic replaced the broken gearwheel in the engine.

Conversation

Did you see that old clock in the museum?

Yeah, it was fascinating, especially the gearwheel mechanism.

I didn't realize how complex those gearwheels could be.

Right? They really show how much detail went into making it work.

Synonyms & Antonyms

Root Explanation

Gearwheel → The word is formed from "gear" (from Old English *giera*, meaning a tool or device for transmitting motion) and "wheel" (from Old English *hwēol*, meaning a circular object that revolves). A gearwheel is a circular device that transmits motion through interlocking gears.

Memory Tip

Think of a 'tool' ('gear') that helps in 'revolving' ('wheel') to remember that a gearwheel is a circular device that helps transmit motion.

Visually Confused Words