Definitions for ALUMˈæl əm

This page provides all possible meanings and translations of the word ALUM

Random House Webster's College Dictionary

al•umˈæl əm(n.)

  1. a crystalline solid, aluminum potassium sulfate, K2SO4∙Al2(SO4)3∙24H2O, used as an astringent and styptic and in dyeing and tanning.

    Category: Chemistry

  2. any of a class of analogous double sulfates.

    Category: Chemistry

Origin of alum:

1275–1325; ME < AF < L alūmen


  1. an alumna or alumnus.

    Category: Informal

Origin of alum:

by shortening


  1. aluminum.

    Category: Chemistry

Princeton's WordNet

  1. alum, ammonia alum, ammonium alum(noun)

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

  2. alum, potassium alum, potash alum(noun)

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

  3. alumnus, alumna, alum, graduate, grad(noun)

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

  4. alum(noun)

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

Webster Dictionary

  1. Alum(noun)

    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

  2. Alum(verb)

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


  1. Alum

    Alum is both a specific chemical compound and a class of chemical compounds. The specific compound is the hydrated potassium aluminium sulfate with the formula KAl(SO4)2·12H2O. More widely, alums are double sulphate salts, with the formula AM(SO4)2·12H2O, where A is a monovalent cation such as potassium or ammonium and M is a trivalent metal ion such as aluminium or chromium.

Anagrams of ALUM

  1. Maul

Translations for ALUM

  • สารส้มThai


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