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toxoid

n.
1.a bacterial toxin that has been weakened until it is no longer toxic but is strong enough to induce the formation of antibodies and immunity to the specific disease caused by the toxin

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  • Idiom of the Day

    with a heavy heart
    sadly
    It was with a heavy heart that we said goodbye to our elderly neighbor.



    1.
    A man entered the tavern (a) / and asked for some bread and cheese (b) / with a decided foreign accent. (c) / No error (d)

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