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.