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.
from The American Heritage Dictionary of the English Language, 4th Edition
Informal An alumna or alumnus.
from The American Heritage Dictionary of the English Language, 4th Edition
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.
from Free Scrabble Dictionary
Any of various double salts isomorphous with potassium aluminum sulfate.
from Free Scrabble Dictionary
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