Main Entry: ref·or·ma·tion

Pronunciation: \ˌre-fər-ˈmā-shən\

Function: noun

Date: 15th century

1 : the act of reforming : the state of being reformed
2 capitalized : a 16th century religious movement marked ultimately by rejection or modification of some Roman Catholic doctrine and practice and establishment of the Protestant churches

— ref·or·ma·tion·al \-shnəl, -shə-n^əl\ adjective