Noun: hardtack 'haa(r)d,tak
- Very hard unsalted biscuit or bread; a former ship's staple
"Sailors survived on hardtack during long voyages";
- pilot biscuit, pilot bread, sea biscuit, ship biscuit
- A mountain mahogany
"Hardtack trees dotted the arid landscape"
Derived forms: hardtacks
Type of: biscuit [N. Amer], mahogany, mahogany tree
Encyclopedia: Hardtack