potash alum

[ pot-ash al-uhm ]

/ ˈpɒtˌæʃ ˈæl əm /

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noun Chemistry.

alum¹ (def. 1).

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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

How to use potash alum in a sentence

A TNR alum dives deep in what happened with the 100-year-old institution.
The Daily Beast’s Best Longreads, Dec 8-14, 2014|William Boot|December 13, 2014|DAILY BEAST
And those who take issue with the ice bucket challenge have found an unexpected spokesperson in Jackass alum Steve-O.
#IceBucketChallenge Wisdom From 'Jackass' Steve-O|Kevin Zawacki|August 21, 2014|DAILY BEAST
Marine friends, all ranks and all mostly Anbar fighting alum, have been sending me emails as well.
Their Fight…But Our Legacy: The New Battle for Fallujah|John Kael Weston|January 12, 2014|DAILY BEAST
Apple alum Tony Fadell reinvented the boring market for home thermostats with his sleek and eco-savvy digital Nest.
How to Hack the Perfect Home|Daniel Gross|November 15, 2013|DAILY BEAST

Petraeus, himself a Sosh alum, became the central figure for a mix of reasons.
The Petraeus Revolution: How He Changed the American Way of War|John Barry|January 8, 2013|DAILY BEAST
This I attribute to the potash being in a little more caustic condition than when recrystallised with iodine.
Notes and Queries, Number 177, March 19, 1853|Various
It dissolves in dilute potash, and on the addition of acetic acid is deposited in a pure state.
Elements of Agricultural Chemistry|Thomas Anderson
Eventually, however, both varieties become converted into clay, their magnesia and potash passing gradually into soluble forms.
Elements of Agricultural Chemistry|Thomas Anderson
All of them are particularly rich in potash, and contain but a small proportion of phosphoric acid.
Elements of Agricultural Chemistry|Thomas Anderson
If they require a second water put alum to that also as well as to the rinsing and blue water.
The Ladies' Book of Etiquette, and Manual of Politeness|Florence Hartley

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