Definition

A device that represents the solar system, showing how the planets move around the sun using mechanical parts.

Example

The museum had a beautiful orrery that demonstrated the movements of the planets.

Conversation

Have you ever seen an orrery?

No, I haven't! What is it exactly?

It's a mechanical model of the solar system that shows how the planets move.

That sounds really cool! I'd love to see one in action.

Synonyms & Antonyms

Root Explanation

Orrery originates from the name of the Earl of Orrery, who was associated with the invention of this mechanical model of the solar system in the 18th century. The term itself does not have a clear Latin or Greek root but is derived from a proper noun, indicating its historical significance.

Memory Tip

Think of the Earl of Orrery, who inspired the name of this device that models the solar system, helping you remember that an orrery is a representation of celestial bodies.

Visually Confused Words