Definition of protestants:
(n) :
(chiefly law) One who protests; a protester.
(adj) :
Protesting.
(n) :
(Christianity) A member of any of several Christian denominations which separated from the Roman Catholic Church based on theological or political differences during the Reformation (or in some cases later).
(adj) :
(Christianity) Of or pertaining to several denominations of Christianity that separated from the Roman Catholic Church based on theological or political differences during the Reformation.
(n) :
(historical) A member of the Church of England or Church of Ireland, as distinct from Protestant nonconformists or dissenters.
(n) :
Alternative letter-case form of Protestant. [(Christianity) A member of any of several Christian denominations which separated from the Roman Catholic Church based on theological or political differences during the Reformation (or in some cases later).]