Dictionary

sergeant major

noun

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

plural sergeants major or sergeant majors

Full Definition of SERGEANT MAJOR

1
:  a noncommissioned officer in the army or marine corps serving as chief administrative assistant in a headquarters
2
:  a noncommissioned officer in the marine corps ranking above a first sergeant
3
:  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
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First Known Use of SERGEANT MAJOR

1797
SERGEANT MAJOR Defined for Kids

sergeant major

noun

Definition of SERGEANT MAJOR for Kids

1
:  the chief noncommissioned officer at a military headquarters
2
:  a noncommissioned officer in the marine corps ranking above a first sergeant
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