sergeant major n.
pl.sergeants major or sergeant majors
Abbr. SGM or SgtMaj Used as a title for a noncommissioned officer serving as chief administrative assistant of a headquarters unit of the U.S. Army or Marine Corps.
One who holds this title.
Chiefly British A noncommissioned or warrant officer of the highest rank in a company or unit of battalion size.
A small damselfish (Abudefduf saxatilis) of warm seas, having a flattened body with dark vertical stripes. Also called cow pilot.
