SEMINAUFRAGIUM. A term used by Italian lawyers, which literally signifies half-shipwreck, and by which they understand the jetsam, or casting merchandise into the sea to prevent shipwreck. Locre, Esp. du Code de Com. art. 409. It also signifies the state of a vessel which has been so much injured by tempest or accident, that to repair the damages, after being brought into port, and prepare her for sea, would cost more than her worth. 4 Law Rep. 120.