Adjutant

1. A helper; an assistant.
2. (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.
3. (Zoöl.) A species of very large stork (Ciconia argala), a native of India; -- called also the gigantic crane, and by the native name argala. It is noted for its serpent-destroying habits.
Adjutant general (a) (Mil.),
the principal staff officer of an army, through whom the commanding general receives communications and issues military orders. In the U. S. army he is brigadier general.