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photoelectricity
[ foh-toh-i-lek-tris-i-tee, -ee-lek- ]
noun
, Physics.
- electricity induced by electromagnetic radiation, as in certain processes, as the photoelectric and photovoltaic effects, photoconductivity, and photoionization.
- 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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