Definition of potash in English:

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potash

Pronunciation: /ˈpädˌaSH/

noun

An alkaline potassium compound, especially potassium carbonate or hydroxide.
Example sentences
  • Glauber created a mixture of saltpeter, lime, phosphoric acid, nitrogen and potash which was the first completely mineral fertilizer.
  • Fertilizers containing high amounts of nitrate of soda, muriate of potash, potassium nitrate and ammonium nitrate can cause the highest accumulated salts.
  • The suitcase contained chlorate of potash and paraffin wax, which was mixed with gelignite to form an explosive compound.

Origin

Early 17th century: from pot-ashes, from obsolete Dutch potasschen, originally obtained by leaching vegetable ashes and evaporating the solution in iron pots.

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