hardtack

A noun referring to a very hard, unsalted biscuit or bread, historically used as a staple food on ships, or alternatively a type of mountain mahogany.

• 🇨🇳指一种非常坚硬、无盐的饼干或面包，历史上曾作为船员的主要食物；也可指一种山地红木。

1. Hard biscuit or bread C1 formal

   A very hard, dry, unsalted biscuit or bread, historically used as a staple food on long sea voyages.

   • Sailors often relied on hardtack as their main food supply during long journeys.
   • The hardtack was so tough it had to be soaked in water before eating.
   • He broke a piece of hardtack and chewed it slowly.

   🇨🇳压缩饼干

   同义词: pilot biscuitpilot breadship biscuit

2. Mountain mahogany C2 formal american

   A type of shrub or small tree, known as mountain mahogany, found in dry mountainous regions.

   • The hardtack tree is common in the rocky slopes of the western United States.
   • Mountain mahogany, also called hardtack, has dense wood used for tools.
   • The leaves of the hardtack shrub turn a silvery color in the wind.

   🇨🇳山红木

• hardtacks plural form
• hardtacks' possessive plural form
• hardtack's possessive singular form