Definition

A type of electronic device that controls the flow of electricity, consisting of three main parts: an anode, a cathode, and a control grid.

Example

The radio uses a triode to amplify the sound signals.

Conversation

Have you ever heard of a triode?

Yeah, it's that vacuum tube with the anode, right?

Exactly! It also has a cathode and a control grid.

I find it fascinating how it amplifies signals.

Synonyms & Antonyms

Root Explanation

Triode → It is formed from "tri-" (meaning three) and "ode" (from Greek "hodos", meaning way or path). The word refers to a device that has three electrodes, thus relating to the concept of three paths for electrical flow.

Memory Tip

Think of 'three' ('tri-') pathways or connections in a device, which is what a triode is.

Visually Confused Words