Definition

A wheel that has teeth (cogs) around its edge, used in machines to transfer motion and force between different parts.

Example

The engineer replaced the broken cogwheel in the machine to ensure it worked properly again.

Conversation

Have you ever seen a cogwheel up close?

Yeah, I remember seeing one in a clock mechanism.

They're so interesting how they all work together, right?

Absolutely! It's amazing how a simple cogwheel can keep everything running.

Synonyms & Antonyms

Root Explanation

Cogwheel → The word is formed from "cog" (from Middle English *cogge*, meaning a tooth or projection) and "wheel" (from Old English *hwēol*, meaning a circular object that revolves). A cogwheel is a wheel with teeth that interlock with other gears to transmit motion.

Memory Tip

Think of the 'teeth' ('cog') of a wheel ('wheel') that work together to help machines move. This helps you remember that a cogwheel is a wheel with teeth.

Visually Confused Words