Regulars
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
In ecclesiastical law
Those who profess and follow a certain rule of life (regula), belong to a religious order, and observe the three approved vows of poverty, chastity, and obedience.
Wharton.