ingestion

noun

: the act or process of taking in something for or as if for digestion : the act or process of ingesting something
A Cochrane review showed that ingestion of cranberry products may decrease the number of symptomatic urinary tract infections in women …Giovanni Montini et al.
Celiac disease is the immune-mediated response to ingestion of gluten from wheat, rye and barley that damages the small intestine.Valerie Putnam
After two years of almost manic ingestion of book after book—Montaigne, Milton, Seneca, Dante—he began to write Moby-Dick.Andrew Delbanco

Examples of ingestion in a Sentence

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.
Methanol poisoning can usually be treated successfully if it’s diagnosed within 10 to 30 hours after ingestion and the patient is admitted to the hospital. Bailey Richards, PEOPLE, 6 Sep. 2026 Bioavailability is the extent to which a contaminant is absorbed by organisms following exposure through inhalation, dermal contact, or ingestion. Encyclopedia Britannica, 3 Sep. 2026 If lily pollen or another substance is on a cat’s coat, Wahlen recommends wiping it away or washing the area with diluted dish soap to prevent ingestion during grooming. Lauren Paige Richeson, USA Today, 2 Sep. 2026 In January, Rogness was charged with felony drug possession and ingestion, but was out on bond and awaiting trial at the time of Wendel’s death. Gabriel Brito, Sioux Falls Argus Leader, 13 Aug. 2026 See All Example Sentences for ingestion

Word History

First Known Use

1620, in the meaning defined above

Time Traveler
The first known use of ingestion was in 1620

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Cite this Entry

“Ingestion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ingestion. Accessed 12 Sep. 2026.

Medical Definition

ingestion

noun
: the taking of material (as food) into the digestive system
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