Definition, Meaning & Synonyms

alum

Noun

ˈæl.əm

Definition

A type of chemical compound that is typically a hydrated double sulfate of aluminum and another metal.

Examples

Alum is often used in pickling vegetables.
In schools, students may use alum as part of science experiments involving chemical reactions.
The traditional method of water purification utilizes alum to clarify drinking water.

Meaning

Alum refers to a group of compounds, commonly used in various industries and applications, including water purification, food processing, and as astringents in medicine.