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

Their high fiber content also supports better digestion and stabilizes blood sugar by slowing the absorption of carbohydrates. 15. —Lauren Manaker Ms, Health, 19 June 2025

Your Blood Sugar Improves Dietary fiber slows down digestion and promotes the growth of beneficial bacteria in your gut. —Brittany Lubeck, Verywell Health, 18 June 2025

Amino acids are more easily absorbed than proteins and do not damage the intestinal environment, which means even those with sensitive digestions can take them. —Misaki Kawatsu, Vogue, 10 June 2025

Because of this, the dinosaur probably relied on its stomach microbiota and fermentation to aid in digestion. —Monica Cull, Discover Magazine, 9 June 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