Res ipsa loquitur
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
The thing speaks for itself. A phrase used in actions for injury by negligence where no proof of negligence is required beyond the accident itself, which is such as necessarily to involve negligence: e. g., a collision between two trains upon a railway.
Wharton. See Benedick v. Potts, 88 Md. 52, 40 Atl. 1067, 41 In R. A. 478; Grif-fen v. Manice, 166 N. Y. 188, 59 N. E. 925, 52 L. R. A. 922, 82 Am. St. Rep. 630; Excelsior Electric Co. v. Sweet, 57 N. J. Law, 224, 30 Atl. 553; Houston v. Brush, 66 Vt. 331, 29 Atl. 380; Scott v. London, etc., Docks Co., 3 Hurl. & C. 596.