cathode

(kat̸h′ōd′)

noun

in an electroplating cell, the negatively charged electrode, from which current flows
in an electron tube, the negatively charged electron emitter
in a battery that is a source of electric current, as a dry cell or storage battery, the positive electrode which receives the electrons from the external circuit

Origin: coined by Michael Faraday < Gr kathodos, descent < kata-, down + -ode

Related Forms:

See cathode in American Heritage Dictionary 4

noun Abbr. ka

A negatively charged electrode, as of an electrolytic cell, a storage battery, or an electron tube.
The positively charged terminal of a primary cell or a storage battery that is supplying current.

Origin:

Origin: Greek kathodos, descent

Origin: : kat-, kata-, cata-

Origin: + hodos, way, path

Related Forms: