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photocathode

[ foh-toh-kath-ohd ]

noun

  1. a cathode, typically of a cesium or sodium compound, having the property of emitting electrons when activated by light or other radiation.

photocathode

/ ˌfəʊtəʊˈkæθəʊd /

noun

  1. a cathode that undergoes or is used for photoemission

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Word History and Origins

Origin of photocathode1

First recorded in 1925–30; photo- + cathode

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photocatalysisphotocell

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