Definition

A mechanical part that is shaped like a wheel or cylinder and is used to change the type of motion in machines, often converting rotary motion into linear motion.

Example

The engineer designed a new cam to improve the efficiency of the engine.

Conversation

Have you ever seen how a cam works in machines?

No, I haven't! What does it do?

It helps convert rotary motion into linear motion, which is pretty cool.

That sounds fascinating! I’d love to learn more about it.

Synonyms & Antonyms

Root Explanation

The word 'cam' originates from Old English 'camm', meaning a hair or a tuft. It refers specifically to a projecting part of a machine that converts rotary motion into linear motion, resembling a tuft or projection.

Memory Tip

Think of a 'tuft' or 'hair' ('camm') that sticks out — that's why 'cam' refers to a part that projects in machinery.

Visually Confused Words