Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun alum, hydrated potassium aluminium sulphate, formula K2SO4.Al2(SO4)3.24H2O

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

potash + alum

Examples

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