(1):
(n.) 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.
(2):
(n.) A helper; an assistant.
(3):
(n.) A regimental staff officer, who assists the colonel, or commanding officer of a garrison or regiment, in the details of regimental and garrison duty.