Definition of Excess Policy
One that provides that the insurer is liable only for the excess above and beyond that which may be collected on other insurance. Brownsville Fabrics, Inc. v. Gulf Ins. Co., Tex.Civ.App., 550 S.W.2d 332, 337.
That's the definition of Excess Policy in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.