text: Specifically, it's one who agrees with most scriptural interpretations that came from the leaders of the Reformation movement which was started in Germany in the 1500s by Martin Luther, and continued in Switzerland with John Calvin, Scotland with John Knox, and more recently with other theologians most of whom would describe themselves as Presbyterian in affiliation. It's not exclusively Presbyterian, but I think the best known folks, at least in the US, are of Presbyterian background (Presbyterian comes from the Greek word for Presbyter which basically is a representative form of church government where the congregation elects elders who represent them and lead them, and the pastor of the congregation answers to a larger body (often called a "General Assembly") which is made up of delegated elders from each church in the denomination. It's in contrast to the Baptist form of church government where the local pastor is the highest authority, or the Catholic/Orthodox forms of church government where there is a hierarchy of church government that culminates in the Pope.)