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cofactor

n.
1.a substance (as a coenzyme) that must join with another to produce a given result

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  • coextensive
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  • Idiom of the Day

    fit as a fiddle
    to be in good athletic condition or health
    My grandfather is 92 years old but he is as fit as a fiddle.



    1.
    Marian was very exhausted at the end of the day so she ________ slowly along the beach on her way back home.

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