Of the Protestant movement typically associated with John Calvin, as separated from the Lutheran Church to pursue more extensive reformation.

Corrected; amended; restored to purity or excellence; said, specifically, of the whole body of Protestant churches originating in the Reformation, or, in a more restricted sense, of those who separated from Martin Luther on the doctrine of consubstantiation, etc., and carried the Reformation, as they claimed, to a higher point.

simple past tense and past participle of reform

(transitive) To put into a new and improved form or condition; to restore to a former good state, or bring from bad to good; to change from worse to better

The change of something that is defective, broken, inefficient or otherwise negative, in order to correct or improve it

That serves to reform or correct

(Christianity, historical) Alternative letter-case form of reformer (“one involved in the Reformation”) / (Canada, historical) A member of the Reform movement in 19th-century Canada.

(historical) The religious movement initiated in the 16th century against the Roman Catholic Church.

Any of several movements that promote reform

plural of reformation