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

Opt for a golden milk latte, shave some over a salad, or simply incorporate the spice into your daily dishes for an instantaneous immune boost—and improved digestion. —Calin Van Paris, Vogue, 18 June 2024

During this critical window of time, an infant's immune system learns to defend against dangerous microbes and to tolerate good ones that can live in the gut and aid in processes such as digestion. —Lydia Denworth, Scientific American, 1 Mar. 2024

Whole Grains Whole grains are a source of filling fiber, which aids digestion and increases feelings of fullness. —Kathleen Felton, Health, 9 June 2024

The organ, which helps with digestion and releases important hormones like insulin, is behind the stomach and in front of the spine. —Ciara McCarthy, Fort Worth Star-Telegram, 20 May 2024

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