digestion

noun

di·​ges·​tion dī-ˈjes-chən 

də-,

-ˈjesh-

: the action, process, or power of digesting: such as

a

: the process of making food absorbable by mechanically and enzymatically breaking it down into simpler chemical compounds in the digestive tract

b

: the process in sewage treatment by which organic matter in sludge is decomposed by anaerobic bacteria with the release of a burnable mixture of gases

Examples of digestion in a Sentence

an enzyme that aids in the digestion of protein

She began to suffer from poor digestion as she grew older.

Recent Examples on the Web

Providing fiber for digestion, there’s fresh broccoli along with antioxidants to help reduce the risk of certain cancers. —Susan Selasky, Freep.com, 4 Oct. 2025

Raw dog food typically contains human-grade meat and vegetables, and it has been linked to improved digestion for canines. —Lex Goldstein, PEOPLE, 4 Oct. 2025

Apple peels are also packed with a high concentration of fiber, contributing to better digestion and weight management. —Lauren Manaker Ms, Verywell Health, 2 Oct. 2025

Flax is known to promote good digestive health and prevent constipation, thanks to plenty of insoluble fiber and soluble fiber (both of which facilitate digestion and regular bowel movements through slightly different means). —Christina Chaey, Bon Appetit Magazine, 30 Sep. 2025

Word History

First Known Use

14th century, in the meaning defined above

Rhymes for digestion

• congestion
• ingestion
• suggestion
• gestion
• question
• indigestion

Kids Definition

digestion

noun

di·​ges·​tion dī-ˈjes-chən 

də-

: the process by which food is broken down into simpler forms in the body by mechanical and enzymatic means

Medical Definition

digestion

noun

di·​ges·​tion dī-ˈjes(h)-chən, də- 

: the action, process, or power of digesting

especially : the process of making food absorbable by mechanically and enzymatically breaking it down into simpler chemical compounds in the digestive tract