'Reformer' definitions:

Definition of 'reformer'

From: WordNet
noun
A disputant who advocates reform [syn: reformer, reformist, crusader, social reformer, meliorist]
noun
An apparatus that reforms the molecular structure of hydrocarbons to produce richer fuel; "a catalytic reformer"

Definition of 'Reformer'

From: GCIDE
  • Reformer \Re*form"er\ (r?*f?rm"?r), n.
  • 1. One who effects a reformation or amendment; one who labors for, or urges, reform; as, a reformer of manners, or of abuses. [1913 Webster]
  • 2. (Eccl.Hist.) One of those who commenced the reformation of religion in the sixteenth century, as Luther, Melanchthon, Zwingli, and Calvin. [1913 Webster]

Synonyms of 'reformer'

From: Moby Thesaurus