What is the meaning of pilot biscuit?

Very hard unsalted biscuit or bread; a former ship's staple.
- synonyms: hardtack, pilot bread, sea biscuit, ship biscuit

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APA	WordNet. (2010). pilot biscuit. Retrieved September 20, 2026, from http://smartdefine.org/pilot_biscuit/definitions/1302131
Chicago	WordNet. 2010. "pilot biscuit" http://smartdefine.org/pilot_biscuit/definitions/1302131 (accessed September 20, 2026).
Harvard	WordNet 2010, pilot biscuit, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/pilot_biscuit/definitions/1302131>.
MLA	WordNet. "pilot biscuit" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/pilot_biscuit/definitions/1302131>

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