Disciplinarian /(?)/

Dis·ci·plin·a·ri·an

Disciplinarian

a.
  1. Pertaining to discipline.

Disciplinarian

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.]