What is Breach Of Warranty?

Legal Definition
In real property law and the law of insurance. The failure or falsehood of an affirmative promise or statement, or the nonperformance of an executory stipulation. Hendricks v. Insurance Co.., 8 Johns. (N. Y) 13; Fitzgerald v. Ben. Ass'n, 39 App. Div. 251, 56 N. Y. Supp. 1005; Stewart v. Drake, 9 N. J. Law, 139.
-- Black's Law Dictionary