alum
- Noun. (chemistry) the double sulphate of potassium and aluminium with chemical formula K2SO4.Al2(SO4)3.24H2O.
- Noun. (chemistry) Any similar double sulphate in which either or both of the potassium and aluminium is wholly or partly replaced by other univalent or tervalent cations.
- Noun. (US) A graduate of a university or other institution.
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This entry was last updated on RefTopia from its source on 3/20/2012.