Definition

A type of ancient steam engine that uses steam pressure to create motion, often considered one of the earliest forms of a steam-powered device.

Example

The eolipile demonstrated the principles of steam power long before modern engines were developed.

Conversation

Have you ever heard of an eolipile?

No, I haven't! What is it?

It's actually a fascinating ancient steam engine.

Wow, that's interesting! I love learning about old inventions.

Synonyms & Antonyms

Root Explanation

Eolipile → The word is derived from the Greek "aeolos" (meaning wind) and "pilos" (meaning a ball or sphere). An eolipile is a device that uses steam to create rotational motion, thus relating to the concept of wind or air movement.

Memory Tip

Think of 'wind' ('aeolos') and a 'sphere' ('pilos') to remember that an eolipile is a device that uses steam to create motion, much like how wind moves things.

Visually Confused Words