Alum

word

1. 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. Verb

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

3. Noun

a double sulphate of aluminum and potassium that is used as an astringent (among other things)
Vocabulary classified under Medicine and healthcare

4. Noun

a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum
Vocabulary classified under Chemistry

5. Noun

a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum
Vocabulary classified under Chemistry
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