Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “cathode”


noun [C]     /ˈkæθ.əʊd/ US  /-oʊd/ specialized
one of the electrodes (= object that electricity moves through) in a piece of electrical equipment. The cathode is the positive electrode in a battery and the negative electrode in an electrolytic cell. → Compare anodeElectrical components and circuitry
(Definition of cathode noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of cathode

More definitions for “cathode”

Definitions of “cathode” in other dictionaries

Word of the Day


a person or group who receives money, advantages, etc. as a result of something else

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More