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n. 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.

n. Informal An alumna or alumnus.

n. A graduate of a university or other institution.

v. To steep in, or otherwise impregnate with, a solution of alum; to treat with alum.

n. A double sulphate formed of aluminium and some other element (esp. an alkali metal) or of aluminium. It has twenty-four molecules of water of crystallization.

v. To steep in, or otherwise impregnate with, a solution of alum; to treat with alum.

n. The general name of a class of double sulphates formed by the union of aluminium, iron, chromium, or manganese sulphate with the sulphate of some other metal, commonly an alkaline metal or ammonium.

To steep in or impregnate with a solution of alum.

n. a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum

n. a double sulphate of aluminum and potassium that is used as an astringent (among other things)

n. a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum

n. a person who has received a degree from a school (high school or college or university)

"The Lost alum is set to guest-star on How I Met Your Mother, a show rep tells TVGuide. com."

al    atomic number 13    double salt    aluminium    aluminum    astringent    styptic    astringent drug   

alum schist    porous alum    alum bath    cubic alum    basic alum    earth of alum    alum shale    alum slate    concentrated alum    roman alum   

potash alum   

Brum    Callum    Krum    Mum    allum    become    brum    bum    callum    chum   

saltpetre    borax    nitre    sulphur    magnesia    drachm    potash    camphor    vitriol    clove