sergeant major


: an officer of low rank in the U.S. Army or Marines Corps

plural sergeants major or sergeant majors

Full Definition of SERGEANT MAJOR

:  a noncommissioned officer in the army or marine corps serving as chief administrative assistant in a headquarters
:  a noncommissioned officer in the marine corps ranking above a first sergeant
:  a bluish-green to yellow bony fish (Abudefduf saxatilis of the family Pomacentridae) with black vertical stripes on the sides that is widely distributed in the western tropical Atlantic Ocean

First Known Use of SERGEANT MAJOR



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