Definition

The outer layer of a star that gives off light, particularly the sun.

Example

The photosphere of the sun is where sunspots can be observed.

Conversation

Have you ever looked at the sun through a telescope?

No, but I've heard it's amazing to see the photosphere.

Yeah, the photosphere is the outer layer that gives off the light we see.

That sounds really cool! I should try it sometime.

Synonyms & Antonyms

Root Explanation

Photosphere → It is formed from "photo-" (from Greek "phōs", meaning light) and "sphere" (from Greek "sphaira", meaning ball or globe). The word "photosphere" refers to the luminous outer layer of a star, particularly the sun, which emits light.

Memory Tip

Think of 'light' ('photo-') coming from a 'globe' ('sphere') — that's why the photosphere is the light-emitting layer of a star.

Visually Confused Words