caliche /ka-lēˈchā/

1. Sand containing Chile saltpetre
2. A crust of calcium carbonate that forms on the surface of the soil in arid regions

• vacancy
• vacant
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• vacantnesses
• vacant possession
• vacant possessions
• vacate
• vacated
• vacates
• vacating
• vacation
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• vacationless
• vacations
• vacatur
• vacaturs
• vaccinal
• vaccinate
• vaccinated