a person devoted to bringing about reform, as in politics or society.
(initial capital letter) any of the leaders of the Reformation.

Origin of reformer

First recorded in 1520–30; reform + -er1
Related formsan·ti·re·form·er, nouncoun·ter·re·form·er, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for reformer

Contemporary Examples of reformer

Historical Examples of reformer

Word Origin and History for reformer

1540s, agent noun from reform (v.).

Online Etymology Dictionary, © 2010 Douglas Harper