Definition

A type of semiconductor device that changes its capacitance based on the voltage applied to it.

Example

The engineer used a varactor in the circuit to improve its performance.

Conversation

Have you ever heard of a varactor?

No, I haven't. What is it?

It's a type of semiconductor device that changes capacitance with voltage.

That sounds interesting! I love learning about electronics.

Synonyms & Antonyms

Root Explanation

Varactor → It is formed from "var" (from "variable", meaning changeable) and "-actor" (from Latin "agere", meaning to do or act). The word refers to a device that acts as a variable capacitor, changing its capacitance with voltage.

Memory Tip

Think of a device that can 'change' ('var') its function or capacity, acting ('-actor') like a capacitor that varies with voltage.

Visually Confused Words