sergeant major

/ˌˈsɑrdʒənt ˌmeɪdʒər/

Other forms: sergeants major; sergeant majors

Definitions of sergeant major

1. noun

   a noncommissioned officer serving as chief administrative officer of a headquarters unit of the Army
   synonyms: command sergeant major

   type of:

   sergeant

   any of several noncommissioned officer ranks in the Army or Air Force or Marines ranking above a corporal
2. noun

   large blue-grey black-striped damselfish; nearly worldwide
   synonyms: Abudefduf saxatilis

   type of:

   damselfish, demoiselle

   small brilliantly colored tropical marine fishes of coral reefs