cathode
Concise Oxford English Dictionary © 2008 Oxford University Press:
cathode /ˈkaθəʊd/
▶noun a negatively charged electrode. The opposite of anode.
■ the positively charged electrode of an electrical device, such as a primary cell, that supplies current.
– derivatives
cathodal adjective,
cathodic /kəˈθɒdɪk/ adjective.
cathodal adjective,
cathodic /kəˈθɒdɪk/ adjective.
– origin C19: from Gk kathodos ‘way down’, from kata- ‘down’ + hodos ‘way’.
'cathode' also found in these Oxford entries:
anode
- cathode ray
- cathode ray tube
- cathodic protection
- cation
- cold cathode
- CRT
- electrode
- electron gun
- faceplate
- ghost
- grid
- grid bias
- ignitron
- magic eye
- NiCad
- oscilloscope
- phosphor
- screen
- sweep
- tube
