Definitions for "Hardtack"
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
A very hard square biscuit issued as food to soldiers
very hard unsalted biscuit or bread; a former ship's staple
Any of several mahogany trees, esp. the Cercocarpus betuloides.
a mountain mahogany
Keywords:  gygax, guidon, zocchi, lowry, wargaming
Hardtack is a set of rules for American Civil War miniature wargaming by Lou Zocchi. It was published as a 30-page pamphlet by Guidon Games in 1971, with an introduction by Gary Gygax and artwork by Don Lowry.