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

Soluble fiber binds with water in your gastrointestinal (GI) system and becomes a gel that slows digestion. —Dr. Roshini Raj, Health, 7 Aug. 2025

This combination might slow digestion, and the dry chia may clump together in your stomach, causing a heavy or bloated feeling. —Morgan Pearson, Verywell Health, 7 Aug. 2025

Sugars in whole foods, however, are surrounded by fiber, protein and healthy fats that slow down digestion and help the body manage blood sugar. —Deirdre Bardolf, FOXNews.com, 6 Aug. 2025

Plus, water helps dissolve nutrients that are essential to digestion, like fiber. —Gabrielle Kassel, SELF, 5 Aug. 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