| 单词 | photocathode |
| 释义 | photocathode[ foh-toh-kath-ohd ] / ˌfoʊ toʊˈkæθ oʊd / nouna cathode, typically of a cesium or sodium compound, having the property of emitting electrons when activated by light or other radiation. Origin of photocathodeFirst recorded in 1925–30; photo- + cathode Words nearby photocathodephotobomb, photo call, photocard, photocatalysis, photocatalyst, photocathode, photocell, photochemical, photochemical smog, photochemistry, photochemotherapy Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for photocathodephotocathode / (ˌfəʊtəʊˈkæθəʊd) / nouna 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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