- baptist [bap′tist]n.[ME & OFr baptiste < LL (Ec) baptista, a baptizer (esp. John the Baptist) < Gr baptistēs: see BAPTIZE]1. a person who baptizes2. [B-] a member of a Protestant denomination holding that baptism should be given only to believers after confession of faith and by immersion rather than sprinkling——————the BaptistJohn the Baptist
English World dictionary. V. Neufeldt. 2014.