potash

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈpɒtæʃ/US:USA pronunciation: IPA and respellingUSA pronuncation: IPA/ˈpɑtˌæʃ/ ,USA pronunciation: respelling(potash′)


WordReference Random House Learner's Dictionary of American English © 2020
pot•ash /ˈpɑtˌæʃ/USA pronunciation   n. [uncountable]
  1. Chemistrya white, powdery substance, potassium carbonate, esp. the crude impure form taken from wood ashes.

WordReference Random House Unabridged Dictionary of American English © 2020
pot•ash  (potash′),USA pronunciation n. 
  1. Chemistrypotassium carbonate, esp. the crude impure form obtained from wood ashes.
  2. Chemistrypotassium hydroxide.
  3. Chemistrythe oxide of potassium, K2O.
  4. Chemistrypotassium, as carbonate of potash.
  • back formation from plural pot-ashes, translation of early Dutch potasschen. See pot1, ash1 1615–25

Collins Concise English Dictionary © HarperCollins Publishers::
potash /ˈpɒtˌæʃ/ n
  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
Etymology: 17th Century pot ashes, translation of obsolete Dutch potaschen; so called because originally obtained by evaporating the lye of wood ashes in pots
'potash' also found in these entries (note: many are not synonyms or translations):
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