- of Martin Luther
- of his doctrines, esp. justification by faith
- designating or of the Protestant denomination founded by Luther
any member of a Lutheran Church
- Of or relating to the religious doctrines of Martin Luther, especially the doctrine of justification by faith alone.
- Of or relating to the Protestant denomination adhering to these doctrines.
A member of the Lutheran Church.
- Lu′ther·an·ism, Lu′ther·ism