n.
Pronunciation: ' ka- ˌ th ō d
Function: noun
Etymology: Greek kathodos way down, from kata- + hodos way
Date: 1834
1 : the electrode of an electrochemical cell at which reduction occurs: a : the negative terminal of an electrolytic cell b : the positive terminal of a galvanic cell
2 : the electron-emitting electrode of an electron tube broadly : the negative electrode of a diode ― compare ANODE
– cath · od · al \ ' ka- ˌ th ō -d ə l \ adjective
– cath · od · al · ly adverb
– ca · thod · ic \ ka- ' thä-dik, - ' th ō - \ adjective
– ca · thod · i · cal · ly \ -di-k( ə -)l ē \ adverb