Freezing Definition

Chemistry Glossary Definition of Freezing

Liquid water changing into ice is an example of freezing. Momoko Takeda/Getty Images
by Anne Marie Helmenstine, Ph.D.
Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels.
Updated January 26, 2019

Freezing Definition: 

The process through which a substance changes from a liquid to a solid. All liquids except helium undergo freezing when the temperature becomes sufficiently cold.

Example:

Water changing to ice