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photoelectricity

[ foh-toh-i-lek-tris-i-tee, -ee-lek- ]

noun

, Physics.
  1. electricity induced by electromagnetic radiation, as in certain processes, as the photoelectric and photovoltaic effects, photoconductivity, and photoionization.
  2. the branch of physics that deals with these phenomena.


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Word History and Origins

Origin of photoelectricity1

First recorded in 1875–80; photo- + electricity

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photoelectric effectphotoelectric magnitude