A helper; an assistant. (Mil.) A regimental staff officer, who assists the colonel, or commanding officer of a garrison or regiment, in the details of regimental and garrison duty. A military officer, attached to every battalion of a regiment. It is his duty to superintend, under his superiors, all matters relating to the ordinary routine of discipline in the regiment.
- (Zoology) A species of very large stork a native of India; - called also the gigantic crane, and by the native name argala. It is noted for its serpent-destroying habits.