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

That's because whole-grain cereals provide fiber, which supports digestion, helps stabilize blood sugar and promotes fullness. —Daryl Austin, USA Today, 6 Feb. 2026

Prebiotics and probiotics There is a combination of prebiotics with multistrain probiotics to support digestion and the immune system. —Pubsubhub User, Chicago Tribune, 6 Feb. 2026

Research even suggests the meditative, stress-melting vibe of yoga could help smooth out digestion and alleviate some symptoms of IBS. —Julia Ries Wexler, SELF, 6 Feb. 2026

Key Takeaways Lemons and limes are nutritionally similar citrus fruits, both rich in vitamin C, antioxidants, and fiber that support immune health, digestion, and skin health. —Heather Jones, Verywell Health, 6 Feb. 2026

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