What is Actionable Negligence?

Legal Definition
The breach or nonperformance of a legal duty, through neglect or carelessness, resulting in damage or injury to another. Roddy v. Missouri Pac. R. Co.. 104 Mo. 234, 15 S. W. 1112. 12 In R. A. 746, 24 Am. St. Ren. 333; Boardman v. Creighton, 95 Me. 154, 49 Atl. 663; Hale v. Grand Trunk R. Co, 60 Vt. 605, 15 Atl. 300, 1 L. R. A. 187; Fidelity & Casualty Co. v. Cutts, 95 Me. 162, 49 Atl. 673.
-- Black's Law Dictionary