—n.
1 a member or follower of any of the western Christian Churches that are separate from the Roman Catholic Church in accordance with the principles of the Reformation.
2 (protestant) a protesting person.
—adj.
1 of or relating to any of the Protestant Churches or their members etc.
2 (protestant) also protesting.
Derivatives:
Protestantism n. Protestantize v.tr. & intr. (also -ise).
Etymology: mod.L protestans, part. of L protestari (see PROTEST)
Useful english dictionary. 2012.