Definition of heretic noun from the Oxford Advanced Learner's Dictionary

 

heretic

 noun
noun
BrE BrE//ˈherətɪk//
 
; NAmE NAmE//ˈherətɪk//
 
 
jump to other results
a person who is guilty of heresy Word Origin Middle English: from Old French heretique, via ecclesiastical Latin from Greek hairetikos ‘able to choose’ (in ecclesiastical Greek, ‘heretical’), from haireomai ‘choose’.
See the Oxford Advanced American Dictionary entry: heretic