01 n. One who effects a reformation or amendment; one who labors for, or urges, reform; as, a reformer of manners, or of abuses.
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1.
One who effects a reformation or amendment; one who labors for, or urges, reform; as, a reformer of manners, or of abuses.
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2.
One of those who commenced the reformation of religion in the sixteenth century, as Luther, Melanchthon, Zwingli, and Calvin.(Eccl.Hist.)