Definition from Wiktionary, the free dictionary
adjutant (plural adjutants)
- (military) A lower-ranking officer who assists a higher-ranking officer with administrative affairs.
- An assistant.
- (zoology) A bird in the genus Leptoptilos of the stork family Ciconiidae.
- (bird): marabou
Derived terms 
adjutant (not comparable)
- The noun used as a modifier (e.g. adjutant officer).
See also 
adjutant m (plural adjutants)