hardtack
1. [ noun ] (chemistry,nautical,food) very hard unsalted biscuit or bread; a former ship's staple
Synonyms: pilot_bread sea_biscuit ship_biscuit pilot_biscuit
Related terms: biscuit
2. [ noun ] (botany) a mountain mahogany
Related terms: mahogany
Similar spelling:   hard_tick
  Hardwick
  hard_disc
  hard_disk
  Hardage