Definition of photocathode

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  • photocathode is a valid Scrabble US word with a point value of 23
  • photocathode is a valid Scrabble UK word with a point value of 23
  • photocathode is a valid Words with friends word with a point value of 23

Definition of photocathode

  • a cathode that emits electrons when illuminated (noun)

See definition of photocathode in Merriam Webster