di·​ges·​tion | \ dī-ˈjes-chən How to pronounce digestion (audio) , də-, -ˈjesh-\

Definition of digestion

: 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

Juice contains the same vitamins and natural sugars found in whole fruit but lacks the satiating fiber that aids healthy digestion and makes an apple or orange a satisfying snack, Abreu explains. Jamie Ducharme, Time, "Should I Give My Child Juice? Here’s What Experts Say," 5 Sep. 2019 Metabolites are substances produced during metabolism (digestion or other bodily chemical processes) that are responsible for any number of bodily functions. Jennifer Ouellette, Ars Technica, "We now know what causes these two shark species to glow green," 8 Aug. 2019 Hummingbirds’ anatomy and digestion are very different from humans. Jessica Pollock, The Conversation, "Curious kids: Why don’t hummingbirds get fat or sick from drinking sugary nectar?," 23 Aug. 2019 From antibacterial properties, aiding digestion, hay fever, colds, energy and even as cure for sleeping disorders the list goes on. Erin Hill, PEOPLE.com, "James Middleton Reveals Surprise Passion for Beekeeping: 'It’s a Chance to Escape My Mind'," 23 Aug. 2019 Some scientists believe this is so because these foods contain proteins that are unusually stable to digestion, heating and changes in pH and are therefore more likely to cause an immune response. Claudia Wallis, Scientific American, "How to Prevent Food Allergies," 24 July 2019 Many of the foods the Hawks promote are intended to decrease inflammation, promote healing and help with digestion. Jimmy Greenfield, chicagotribune.com, "Blackhawks teach their prospects how to eat smarter — say yes to bone broth and dark chocolate — to get them to the NHL faster," 19 July 2019 Liquid coconut oil can be added to salad dressing or homemade mayonnaise to help digestion and maximize nutrient uptake, says Fife. Byron P. Lee, Woman's Day, "5 Ways You Can Use Coconut Oil to Lose Weight," 28 Dec. 2017 One is your activity level, because exercise can help move digestion along. Carolyn L. Todd, SELF, "How Much Fiber Should I Be Eating to Feel Regular?," 30 May 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'digestion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of digestion

14th century, in the meaning defined above

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Statistics for digestion

Last Updated

18 Sep 2019

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Time Traveler for digestion

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

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More Definitions for digestion



English Language Learners Definition of digestion

: the process by which food is changed to a simpler form after it is eaten


di·​ges·​tion | \ dī-ˈjes-chən How to pronounce digestion (audio) , də-\

Kids Definition of digestion

: the body's process or power of changing food into simpler forms that can be taken up and used


di·​ges·​tion | \ dī-ˈjes(h)-chən, də- How to pronounce digestion (audio) \

Medical Definition of digestion

: 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

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Comments on digestion

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authorized for issue (as a bond)

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