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

The fiber slows digestion, which can blunt the blood sugar spike that plain lemonade would normally cause. — Sarah Anzlovar, Verywell Health, 4 Aug. 2026

Papaya is rich in vitamins A and C, supporting immune health, digestion, and more. — Sherri Gordon, Health, 2 Aug. 2026

Any remaining nutrient-rich liquid from the digestion process, called digestate, will also be processed into low-grade liquid fertilizer. — Christopher McFadden, Interesting Engineering, 1 Aug. 2026

Supports Digestive Health Lettuce provides fiber, which helps keep digestion regular and nourishes beneficial gut bacteria. — Lynn Andriani, Martha Stewart, 31 July 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