Disciplinarian

Part of speech: noun (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.]

Part of speech: adjective (a.)

Pertaining to discipline. "Displinarian system." Milman.