Definition of prednisone
: a glucocorticoid C21H26O5 that is a dehydrogenated analog of cortisone and is used as an anti-inflammatory agent, as an antineoplastic agent, and as an immunosuppressant
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Merriam-Webster unabridged
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Time Traveler for prednisone
The first known use of prednisone was in 1955
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