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Word: potash
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Meaning:
Noun:
- chemistry an impure form of potassium carbonate (K2CO3) mixed with other potassium salts
- chemistry (''archaic'') in the names of compounds of the form "... of potash", potassium (for example, "permanganate of potash" = potassium permanganate)
- the water-soluble part of the ash formed by burning plant material; used for making soap, glass and as a fertilizer
Source: Wiktionary
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