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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

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.

They may also decide to use less fertilizer when planting this spring, or turn to cheaper alternatives by swapping out more expensive ammonia fertilizers for cheaper potash options.

From Barron's

According to the United Nations around a third of the world's fertilisers - such as urea, potash, ammonia and phosphates - normally pass through the Hormuz Strait.

From BBC

According to the United Nations, around a third of the world's fertilisers - such as urea, potash, ammonia and phosphates - normally pass through the Hormuz Strait.

From BBC

Moves in potash—a substitute to nitrogen-based fertilizers—are less significant, though K+S earnings will still see a boost, the analysts say.

From The Wall Street Journal

“We’ve had discussions with Morocco, which has the largest reserve of potash anywhere on earth.”

From The Wall Street Journal