Definition

A device that converts light energy into electrical energy, often used in automatic lighting systems or solar panels.

Example

The photocell turned on the streetlights automatically at dusk.

Conversation

Have you heard about the new photocell they installed at the park?

Yeah, I saw it last weekend! It really helps with the lighting.

I think it's cool how it saves energy by using the photocell to turn on automatically.

Absolutely! It's a smart way to be more eco-friendly.

Synonyms & Antonyms

Root Explanation

Photocell → It is formed from "photo-" (from Greek "phōs", meaning light) and "cell" (from Latin "cella", meaning a small room or chamber). The word "photocell" refers to a small chamber or device that responds to light.

Memory Tip

Think of 'light' ('photo-') being detected by a small 'chamber' ('cell') — that's how a photocell works.

Visually Confused Words