Dictionary.net

• An officer in rank next above a colonel, and below a major general. He commands a brigade, and is sometimes called, by a shortening of his title, simple a brigadier.

2010 - New Age Dictionary Database
By Oddity Software

• An officer in rank next above a colonel, and below a major general. He commands a brigade, and is sometimes called, by a shortening of his title, simple a brigadier.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.