[ foh-toh-kath-ohd ]
/ ˌfoʊ toʊˈkæθ oʊd /
a cathode, typically of a cesium or sodium compound, having the property of emitting electrons when activated by light or other radiation.
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Words nearby photocathode
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for photocathode
/ (ˌfəʊtəʊˈkæθəʊd) /
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