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1. Oxford Dictionary

   photocathode

   • IPA[ˌfəʊtə(ʊ)ˈkaθəʊd]

   英式

   • n.
     a cathode which emits electrons when illuminated, causing an electric current.

   • noun: photocathode, plural noun: photocathodes

2. • 更多解釋

   photocathode

   • IPA[ˌfōdōˈkaˌTHōd]

   美式

   • n.
     a cathode which emits electrons when illuminated, causing an electric current.

   Oxford American Dictionary