1. One who effects a reformation or amendment; one who labors for, or urges, reform; as, a reformer of manners, or of abuses.
2. Eccl.Hist. One of those who commenced the reformation of religion in the sixteenth century, as Luther, Melanchthon, Zwingli, and Calvin.
n 1: a disputant who advocates reform [syn: reformist, crusader,
2: an apparatus that reforms the molecular structure of
hydrocarbons to produce richer fuel; "a catalytic