- ammonium alum
- ammonia alum
- potassium alum
To steep in, or otherwise impregnate with, a solution of alum; to treat with alum.
Other Word Forms of Alum
Origin of Alum
From Anglo-Norman alum, alume et al., Middle French allume, from Latin alūmen (“alumen”).
From alumnus and alumna, by removal of the non-native, gender-specific endings.
Middle English from Old French from Latin alūmen
From American Heritage Dictionary of the English Language, 5th Edition
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