\Sur"geon\, n. [OE. surgien, OF. surgien, contr. fr.
chirurgien. See {Chirurgeon}.]
1. One whose profession or occupation is to cure diseases or
   injuries of the body by manual operation; one whose
   occupation is to cure local injuries or disorders (such as
   wounds, dislocations, tumors, etc.), whether by manual
   operation, or by medication and constitutional treatment.
2. (Zo["o]l.) Any one of numerous species of ch[ae]todont
   fishes of the family {Teuthid[ae]}, or {Acanthurid[ae]},
   which have one or two sharp lancelike spines on each side
   of the base of the tail. Called also {surgeon fish},
   {doctor fish}, {lancet fish}, and {sea surgeon}.
{Surgeon apothecary}, one who unites the practice of surgery
   with that of the apothecary. --Dunglison.
{Surgeon dentist}, a dental surgeon; a dentist.
{Surgeon fish}. See def. 2, above.
{Surgeon general}.
   (a) In the United States army, the chief of the medical
       department.
   (b) In the British army, a surgeon ranking next below the
       chief of the medical department.