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

According to a small study, lemon juice may increase stomach acid, facilitating the efficient digestion of starches. — Brittany Lubeck, Verywell Health, 21 July 2026

Protein helps slow digestion and can keep blood sugar levels in a healthy range after meals. — Lindsey Desoto, Health, 20 July 2026

Chicory root fiber can support sleep by improving gut health, stabilising blood sugar and aiding digestion, which may cut down on nighttime awakenings. — Lauren Jarvis-Gibson july 17, Miami Herald, 17 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