An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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cathode
  کاتود  
kâtod (#)
Fr.: cathode  

A negatively charged electrode that is the source of electrons in an electrical device.

Etymology (EN): Gk. kathodos “descent, a way down,” from kata- “down” + hodos “way, path.”