Definition

The study and measurement of light, particularly how bright it is and how it affects vision.

Example

Photometry is essential in designing lighting for buildings and public spaces.

Conversation

Have you ever heard of photometry?

Yeah, it's about measuring light, right?

Exactly! I find it fascinating how it helps in so many fields.

Totally, especially in photography and astronomy!

Synonyms & Antonyms

Root Explanation

Photometry → It is formed from "photo-" (from Greek "phōs", meaning light) and "-metry" (from Greek "metron", meaning measure). The word refers to the measurement of light.

Memory Tip

Think of 'light' ('photo-') being 'measured' ('-metry') — that's what photometry is all about.

Visually Confused Words