Major general : An officer of the army holding a rank next above that of brigadier general and next below that of lieutenant general, and who usually commands a division or a corps.

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Taxonomy
Major General, rank, Major-General, Generalmajor, Army, a Major, general officer, the Major General, Generals, the French, Brigadier General, officer rank, Brigadier, Général de division, Military ranks, Insignia, Major-General Stanley, I am the very model of a modern major-general.

Defination from the web:
Major General is a high-ranking officer, normally subordinate to the rank of Lieutenant General and senior to the ranks of Brigadier and Brigadier General. ... In the Canadian Forces, the rank of Major-General (MGen) (Major-général or Mgén in French) is an Army or Air Force rank ...