photocathode

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noun pho·to·cath·ode \-ˈka-ˌthōd\

Definition of photocathode

  1. :  a cathode that emits electrons when exposed to radiant energy and especially light

Origin and Etymology of photocathode

International Scientific Vocabulary


First Known Use: 1930


Medical Dictionary

photocathode

play
noun pho·to·cath·ode \-ˈkath-ˌōd\

Medical Definition of photocathode

  1. :  a cathode (as in a photoelectric cell) that emits electrons when exposed to light or other radiation


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