Dictionary.com

photocathode

[ foh-toh-kath-ohd ]
/ ˌfoʊ toʊˈkæθ oʊd /
Save This Word!

noun
a cathode, typically of a cesium or sodium compound, having the property of emitting electrons when activated by light or other radiation.
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?

Origin of photocathode

First recorded in 1925–30; photo- + cathode
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use photocathode in a sentence

British Dictionary definitions for photocathode

photocathode
/ (ˌfəʊtəʊˈkæθəʊd) /

noun
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
FEEDBACK