cathode

  1. Noun.  the electrode of an electrochemical cell at which reduction occurs.
  2. Noun.  the electrode through which current flows out of a device or cell (the negative terminal of an electrolytic cell or the positive terminal of a galvanic cell).
  3. Noun.  (''considered incorrect usage by some'') the terminal through which current flows out of a diode when current is in the forward direction regardless of the direction the current is actually flowing.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.