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n. - A negatively charged electrode that is the source of electrons entering an electrical device; The positively charged terminal of a voltaic cell or storage battery that supplies current.

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Usage examples (35)
  • In this way, all of the current through the valve works with the resistors to make the cathode slightly positive.
  • TV and you'll find a funnel-shaped device known as a cathode ray tube.
  • The cathode is a portion of a spherical surface of polished aluminium,
  • That means that it has two components, One is called a cathode, the other an anode.
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We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.