reformist

[Noun] A person, such as a politican or other leader, who works to bring about change in society. Someone who campaigns for change.
Example: Elizabeth Fry was a member of the reformist movement which fought to improve prisons in England in the 19th century.
Found on http://www.bbc.co.uk/skillswise/glossary/

Reformist

Re·form'ist noun [ Confer French réformiste .] A reformer.
Found on http://www.encyclo.co.uk/webster/R/36

Reformist

• (n.) A reformer.
Found on http://thinkexist.com/dictionary/meaning/reformist/
No exact match found