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

Fiber plays a crucial role in digestion, helping to regulate blood sugar, maintain healthy cholesterol levels, and promote gut health. —Paul McClure 06, New Atlas, 6 Feb. 2025

Fiber also helps slow digestion and the absorption of sugar. —Emily Kay Votruba, EverydayHealth.com, 6 Feb. 2025

The drugs are self-injected once a week and help simulate hormones that slow digestion and curb appetite. —Monica Cull, Discover Magazine, 21 Jan. 2025

These include maintaining weight and improving digestion, with 54 percent of Silent Generation respondents aiming to maintain a healthy weight compared to 49 percent of the general population. —John Mac Ghlionn, Newsweek, 14 Jan. 2025

Word History

First Known Use

14th century, in the meaning defined above

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