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killer cell

n.
1.T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it

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    Idiom of the Day

    run through (money or something)
    to spend money recklessly, to use up something wastefully
    We ran through a lot of money when we bought furniture for our new apartment.



    1.
    Please ________ off the grass and stay on the path

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