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potash alum

[ pot-ash al-uhm ]
/ ˈpɒtˌæʃ ˈæl əm /

noun Chemistry.

alum1 (def. 1).

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To cook in water that begins cold and then reaches a boil.
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Also called po·tas·si·um al·um [puh-tas-ee-uhm al-uhm] /pəˈtæs i əm ˈæl əm/ .

Origin of potash alum

First recorded in 1830–40

Words nearby potash alum

potamology, potamoplankton, pot arch, Potaro, potash, potash alum, potash feldspar, potass, potassa, potassic, potassium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for potash alum

potash alum

noun

the full name for alum (def. 1)
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