Black's Law Dictionary (2nd edition)dictionaries

Jettison

The act of throwing over-board from a vessel part of the cargo, in case of extreme danger, to lighten the ship. The same name is also given to the thing or things so cast out. Gray v. wain, 2 Serg. & R. (Pa.) 254, 7 Am. Dec. 642; Butler v. wildman, 3 Barn. & Aid. 326; Barnard v. Adams, 10 How. 303, 13 L. Ed. 417

Source: Black's Law Dictionary 2nd Ed (1910)