Cathode

usgb/ˈkæθəʊd/
noun

A part in an electronic device where electrons enter.

The cathode is marked by a minus sign in the battery.
Visual representation of "cathode" - A part in an electronic device where electrons enter.

Often appears as...

  • cathode ray
  • cathode terminal

Usage tips

Technical

Definition 1 of 3
Visual representation of "cathode"
LampPro Tip 1/3

Device Function

Understanding 'cathode' helps explain how devices like batteries work.

Illustration for Device Function
The flashlight stopped working because the cathode in the battery has depleted.
LampPro Tip 2/3

Minus Sign

'Cathode' is often associated with the negative (-) sign in diagrams or on devices.

Illustration for Minus Sign
Make sure the cathode side is aligned with the minus sign in your remote's battery compartment.
LampPro Tip 3/3

Technical Context

'Cathode' is a technical term used in physics-related fields and documentation.

Illustration for Technical Context
Can you locate the cathode on this circuit diagram?
Visual representation of the word "Cathode"

Never forget "Cathode"

Humans forget easily. That's why you should download WordUp: Smart reminders, word games, AI practice, and much more!

Download on the App StoreGet it on Google PlayGet it from MicrosoftGet it on AppGallery
Chrome

WordUp Chrome Extension

As you browse the web instantly look up words you don’t know.

Get Chrome Extension
Back to top