Definition

A small electronic device that converts light into electrical current, often used in sensors and optical applications.

Example

The photodiode is used in the camera to detect light and help capture images.

Conversation

I just learned about how a photodiode works in my electronics class.

Oh really? What does it do exactly?

It detects light and converts it into an electrical signal using a photodiode.

That sounds really cool! I didn’t know light could be converted like that.

Synonyms & Antonyms

Root Explanation

Photodiode → It is formed from "photo-" (from Greek "phōs", meaning light) and "diode" (from Greek "di-", meaning two, and "hodos", meaning way or path). The word refers to a device that converts light into an electrical signal, utilizing two paths for current flow.

Memory Tip

Think of 'light' ('photo-') being converted into an electrical signal through two paths ('diode'). This helps you remember that a photodiode is a device that works with light.

Visually Confused Words