Word Meaning

alum definition and meaning

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

Crossword clues for alum

- A sulphate
- Double sulphate
- Medicinal compound
- Type of sulphate