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photocathode

[foh-toh-kath-ohd] /ˌfoʊ toʊˈkæθ oʊd/
noun
1.
a cathode, typically of a cesium or sodium compound, having the property of emitting electrons when activated by light or other radiation.
Origin of photocathode
1925-1930
1925-30; photo- + cathode
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for photocathode

photocathode

/ˌfəʊtəʊˈkæθəʊd/
noun
1.
a cathode that undergoes or is used for photoemission
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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