Definition

A type of optical device used to separate light into its different colors or wavelengths, often used in spectroscopy.

Example

The scientist used an echelle to analyze the light spectrum from the star.

Conversation

Have you ever seen an echelle grating in action?

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

It's a type of diffraction grating that helps split light into its components.

That sounds really interesting! I’d love to see one in a lab.

Synonyms & Antonyms

Root Explanation

Echelle → The word 'echelle' comes from Old French 'eschelle', meaning a ladder or scale. It refers to a structure used for climbing or measuring.

Memory Tip

Think of a ladder or scale when you hear 'echelle', as it directly relates to climbing or measuring.

Visually Confused Words