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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  
/ pŏt′ăsh′ /
  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:

Canada is an important supplier of energy and potash to the United States, which has avoided harsh tariffs on both types of products.

From Barron's ● Aug. 26, 2026

A previously announced $2.3 billion write-down of a potash project in Canada weighed on its bottom line.

From The Wall Street Journal ● Aug. 18, 2026

In the U.S., prices for potash fertilizer were largely unaffected by the conflict.

From MarketWatch ● Jul. 24, 2026

Some sectors and goods, including energy, potash and fish or critical minerals, will be exempt from the new tariffs, the White House said.

From The Wall Street Journal ● Jul. 20, 2026

Once, when her grandfather stepped out, Olanna had chewed the piece of chalk too and still remembered the dulling potash taste.

From "Half of a Yellow Sun" by Chimamanda Ngozi Adichie

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