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potash

American  
[pot-ash] / ˈpɒtˌæʃ /

noun

  1. potassium carbonate, especially the crude impure form obtained from wood ashes.

  2. potassium hydroxide.

  3. the oxide of potassium, K 2 O.

  4. potassium, as carbonate of potash.


potash British  
/ ˈpɒtˌæʃ /

noun

  1. another name for potassium carbonate, esp the form obtained by leaching wood ash

  2. another name for potassium hydroxide

  3. potassium chemically combined in certain compounds

    chloride of potash

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

potash Scientific  
/ pŏtăsh′ /
  1. Any of several chemical compounds that contain potassium, especially potassium carbonate (K 2 CO 3), which is a strongly alkaline material obtained from wood ashes and used in fertilizers.


Etymology

Origin of potash

1615–25; back formation from plural pot-ashes, translation of early Dutch potasschen. See pot 1, ash 1

Vocabulary lists containing potash

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Washington lifted sanctions on Belarusian potash and encouraged neighboring countries to do the same, allowing exports that would generate some revenue for the cash-strapped country.

From The Wall Street Journal Jun. 23, 2026

It is a major potash producer and also has a large retail distribution business.

From Barron's Jun. 15, 2026

On Wednesday, Europe’s largest potash supplier raised its forecast for the year as prices for fertilizers have continued to climb as a reduction in liquefied natural gas exports curbed their production.

From MarketWatch Apr. 22, 2026

Potash, the potassium-rich component of fertilizers, has also been in short supply in recent years, in part because of economic sanctions on Belarus and Russia, which are major potash producers.

From Salon Apr. 8, 2026

There were stumps to burn aplenty as he cleared the land, but suddenly there was no need for potash in England and hardly any demand in Vermont.

From "Lyddie" by Katherine Paterson

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