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单词 potash
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potash

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potash

(pɒtæʃ)
uncountable noun
Potash is a white powder obtained from the ashes of burnt wood and is sometimes used as a fertilizer.

potash in British English

(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
Word origin
C17 pot ashes, translation of obsolete Dutch potaschen; so called because originally obtained by evaporating the lye of wood ashes in pots

potash in American English

(ˈpɑtˌæʃ)
noun
1. 
a. 
potassium carbonate (esp. when obtained from wood ashes)
b. 
potassium hydroxide
2. 
any substance containing potassium; esp., salts derived from natural brines, distillery waste, flue dusts of blast furnaces, etc., whose potassium content is expressed in terms of K2O: used in fertilizers, soaps, etc.
Word origin
earlier in pl., potashes < Du potasschen < pot, pot1 + asch, ash1: orig. prepared by evaporating the lixivium of wood ashes in iron pots

Examples of 'potash' in a sentence
potash

The price of potash has trebled in the past decade and mining companies are investing heavily in the sector.
Times, Sunday Times (2011)
The price of potash has jumped fivefold in three years - and farmers are getting anxious.
Times, Sunday Times (2008)
It plans to mine potash found in deposits beneath the surface, leaving behind caverns that have the ideal geology to store compressed air.
Times, Sunday Times (2009)
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更新时间：2024/11/14 18:40:15