digestion

noun

di·​ges·​tion dī-ˈjes-chən How to pronounce digestion (audio)
də-, 
-ˈjesh-
Synonyms of digestionnext
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Fiber keeps your digestion smooth, feeds good gut bacteria, and helps control blood sugar. — Mura Dominko, Martha Stewart, 29 June 2026 Fiber helps with digestion, while protein increases satiety and boosts lean muscle mass. — Cathy Cassata, Health, 24 June 2026 Dogs have a different digestion system than humans. — Madeline Gunderson, USA Today, 26 June 2026 Studies show that your gut health influences much more than just good digestion, including skin, immunity, energy, and mood. — Tatiana Dias, Vogue, 25 June 2026 See All Example Sentences for digestion

Word History

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of digestion was in the 14th century

Rhymes for digestion

See All Rhymes for digestion

Browse Nearby Words

digestif
digestion
digestion coefficient
See all Nearby Words

Cite this Entry

“Digestion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/digestion. Accessed 7 Jul. 2026.

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Kids Definition

digestion

noun
di·​ges·​tion dī-ˈjes-chən How to pronounce digestion (audio)
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- How to pronounce digestion (audio)
: 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
Last Updated: - Updated example sentences
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