martinet

n.
1. A rigid military disciplinarian.
2. One who demands absolute adherence to forms and rules.
So called from an officer of that name in the French army under Louis XIV. Cf. Martin the bird, Martlet.] In military language, a strict disciplinarian; in general, one who lays stress on a rigid adherence to the details of discipline, or to forms and fixed methods. [Hence, the word is commonly employed in a depreciatory sense.]