[ 'prɒtɪst(ə)nt ]
■ noun 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.
■ adjective relating to or belonging to any of the ~ Churches.
Derivatives
~ism noun
~ization or ~isation noun
~ize or ~ise verb
Origin
C16: via Ger. or Fr. from L. protestant- 'protesting', from L. protestari (see protest ).