Cathode
/ˈkæθ.oʊd/noun
The electrode through which electric current leaves a polarized electrical device.
Did you know?The term 'cathode' derives from Greek roots meaning 'way down', connecting to the idea of descending energy flow in electrical devices.
Etymological Timeline
Ancient Greek
Greek
καθοδος (kathodos)
“A way down, descent.”
19th Century
English
cathode
“Adopted in the context of electricity to signify the negative electrode.”
19th Century
English
cathodic
“Relating to or having the characteristics of a cathode.”
Modern English
English
cathode
“The term is solidified in modern electrical terminology.”