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passive immunity

n.
1.an impermanent form of acquired immunity in which antibodies against a disease are acquired naturally (as through the placenta to an unborn child) or artificially (as by injection of antiserum)

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    Idiom of the Day

    flunk out
    to fail a course, to fail school
    My friend flunked out of his computer course at school.



    1.
    The ________ is palpable. Then suddenly the door bursts open and in walks our heroine, Sally looking like a drowned rat.

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