Definition

A device that senses and measures light or other forms of electromagnetic radiation.

Example

The photodetector is essential for capturing images in digital cameras.

Conversation

Have you heard about the new photodetector technology they are using in cameras?

Yeah, it sounds really interesting!

I read that it can improve low-light performance significantly.

That would be awesome for night photography!

Synonyms & Antonyms

Root Explanation

Photodetector → It is formed from "photo-" (from Greek "phōs", meaning light) and "detector" (from Latin "detegere", meaning to uncover or reveal). The word "photodetector" refers to a device that uncovers or reveals information by detecting light.

Memory Tip

Think of 'light' ('photo-') being 'revealed' ('detector') by a device — that's what a photodetector does.

Visually Confused Words