photocathode

[ foh-toh-kath-ohd ]
/ ˌfoʊ toʊˈkæθ oʊd /

noun

a cathode, typically of a cesium or sodium compound, having the property of emitting electrons when activated by light or other radiation.

Nearby words

  1. photobiotic,
  2. photobomb,
  3. photocard,
  4. photocatalysis,
  5. photocatalyst,
  6. photocell,
  7. photochemical,
  8. photochemical smog,
  9. photochemistry,
  10. photochemotherapy

Origin of photocathode

First recorded in 1925–30; photo- + cathode

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


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