cathode

 
Pronunciation: /ˈkaθəʊd/

noun

  • the negatively charged electrode by which electrons enter an electrical device. The opposite of anode
  • the positively charged electrode of an electrical device, such as a primary cell, that supplies current.

Derivatives

cathodal

adjective

cathodic

Pronunciation: /kəˈθɒdɪk/
adjective

Origin:

mid 19th century: from Greek kathodos 'way down', from kata- 'down'+ hodos 'way'