photocathode

noun pho·to·cath·ode \ ˌfō-tō-ˈka-ˌthōd \

Definition of photocathode

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

Origin and Etymology of photocathode

International Scientific Vocabulary


Medical Dictionary

photocathode

noun pho·to·cath·ode \ -ˈkath-ˌōd \

medical Definition of photocathode

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

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