alum

1. Any of various double sulfates of a trivalent metal such as aluminum, chromium, or iron and a univalent metal such as potassium or sodium, especially aluminum potassium sulfate, AlK(SO4)2·12H2O, widely used in industry as clarifiers, hardeners, and purifiers and medicinally as topical astringents and styptics.

2. Informal An alumna or alumnus.

3. A potassium sulfate KAl(SO)·12HO or an ammonium aluminum sulfate NHAl(SO)·12HO used especially as an emetic and as an astringent and styptic.

4. Any of various double salts isomorphous with potassium aluminum sulfate.

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Top Words by points	Points	Word Game
alum	6	Scrabble

2 Letters	Scrabble® Points
al	2
am	4
la	2
ma	4
mu	4
um	4

3 Letters	Scrabble® Points
amu	5
lam	5
lum	5

4 Letters	Scrabble® Points
alum	6
luma	6
maul	6