Dis`ci*plin*a"ri*an (?), a. Pertaining to discipline. "Displinarian system." Milman.

Dis`ci*plin*a"ri*an, n. 1. One who disciplines; one who excels in training, especially with training, especially with regard to order and obedience; one who enforces rigid discipline; a stickler for the observance of rules and methods of training; as, he is a better disciplinarian than scholar.

2. A Puritan or Presbyterian; -- because of rigid adherence to religious or church discipline. [Obs.]

• one who exercises discipline
        He is the chief disciplinarian in the school.
  
• one who believes in discipline as a tool for regulation or control.
  
• discipline
  
• disciple
  
• disciplinary