Definition

A device used to show images from opaque objects or transparent slides onto a screen.

Example

The teacher used an epidiascope to display the artwork to the entire class.

Conversation

Have you ever seen an epidiascope in action?

Yeah, I remember using one during a school presentation.

It’s such a cool tool for showing images, right?

Absolutely! It makes everything look so much more interesting.

Synonyms & Antonyms

Root Explanation

Epidiascope → It is formed from "epi-" (meaning upon or over), "dia-" (meaning through), and "scope" (from Greek "skopein", meaning to look or examine). The word refers to an instrument that allows one to look at objects placed upon a surface while also projecting them through a lens.

Memory Tip

Think of looking 'upon' ('epi-') something 'through' ('dia-') a device that helps you 'examine' ('scope') it — that's what an epidiascope does.

Visually Confused Words