(1483–1546), German Protestant theologian, the principal figure of the German Reformation. He preached the doctrine of justification by faith rather than by works and attacked the sale of indulgences (1517) and papal authority. In 1521 he was excommunicated at the Diet of Worms. His translation of the Bible into High German (1522–34) contributed significantly to the development of German literature in the vernacular.
Definition of Luther, Martin in US English:
Luther, Martin
proper nounˈlo͞oTHər
(1483–1546), German theologian; the principal figure of the German Reformation. He preached the doctrine of justification by faith rather than by works and railed against the sale of indulgences and papal authority.