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cathode
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cathode


Metal can be protected from corrosion by placing it in contact with a more easily corroded metal. The metal to be protected will act as a cathode and the more easily corroded metal will act as an anode.
  a negatively charged electrode that is the source of electrons entering an electrical device

or:

the positively charged terminal of a voltaic cell or storage battery that supplies current
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cathode cathodes
Strongly Associated with:   anode
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Samples:
  • Metal can be protected from corrosion by placing it in contact with a more easily corroded metal. The metal to be protected will act as a cathode and the more easily corroded metal will act as an anode.
  • In 1920, the memorably named Philo T. Farnsworth conceived the cathode ray vacuum tube used in most all twentieth-century TV sets.
    John Green  --  An Abundance of Katherines
  • They had two battered cathode-ray-tube monitors scavenged from a dusty school district storeroom and four videogame joysticks from Radio Shack.
    Joshua Davis  --  Spare Parts
  • It would have been a thirteen-inch one, specially made for us wards of the state by Zenith, with a clear plastic shell around its guts and cathodes, so that the COs would be able to tell if you were extracting parts to make weapons.
    Jodi Picoult  --  Change of Heart

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  • The instrument panel is dominated by six of the largest cathode-ray tubes made, for the display of data.
    Dean Koontz  --  Sole Survivor
  • I’ll give him the good Normal world where we’re tethered beside them—blinking our nights away in a non-stop drench of cathode-ray over our shrivelling heads!
    Peter Shaffer  --  Equus
  • All this can be measured, at least relatively: a cathode in the brain can register the degree of psychoelectric charge an individual gets from any given sensation—A440 extended to thirty seconds, for example.
    John Gardner  --  The Sunlight Dialogues
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Associated words [difficulty]:   cathode [8] , anode [9] , anode [9]
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Most commonly used in these subjects:   Engineering, Science, Medicine
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