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active immunity

n.
1.a form of acquired immunity in which the body produces its own antibodies against disease-causing antigens

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Word of the Day

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  • Idiom of the Day

    sum and substance
    a summary, the gist of something
    The sum and substance of what the speaker said was very interesting.



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    My Account / Test History

    Invention
    Invention : ddt
    Year : 1874
    Inventor : othmar zeidler
    Country : germany.      .. More >>
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