| NOUN | substance | caliche, hardpan | crust or layer of hard subsoil encrusted with calcium-carbonate occurring in arid or semiarid regions |
|---|---|---|---|
| substance | caliche | nitrate-bearing rock or gravel of the sodium nitrate deposits of Chile and Peru |
| Meaning | crust or layer of hard subsoil encrusted with calcium-carbonate occurring in arid or semiarid regions. | |
|---|---|---|
| Synonym | hardpan | |
| Broader | soil, dirt | The part of the earth's surface consisting of humus and disintegrated rock |
| Spanish | hardpan | |
| Catalan | hardpan | |
| Meaning | nitrate-bearing rock or gravel of the sodium nitrate deposits of Chile and Peru. | |
|---|---|---|
| Broader | rock, stone | material consisting of the aggregate of minerals like those making up the Earth's crust |
| Spanish | caliche, nitrato de Chile | |
| Catalan | nitrat de Xile | |
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