Hard·tack or Hard-tack n.
1. A name given by soldiers and sailors to a kind of unleavened hard biscuit or sea bread. Called also pilot biscuit, pilot bread, ship biscuit and ship bread
◄ ►
pilot biscuit
n : very hard unsalted biscuit or bread; a former ship's staple
[syn: hardtack, pilot bread, sea biscuit, ship
biscuit]