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photocathode

n.
1.a cathode that emits electrons when illuminated

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    Idiom of the Day

    go over with a bang
    to succeed in a spectacular way
    The opening ceremony went over with a bang and everybody was very happy.



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    My Account / Test History
    Invention
    Invention : irradiation, food
    Year : 1905
    Inventor : -
    Country : us/uk.      .. More >>
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