def·​e·​ca·​tion ˌde-fi-ˈkā-shən How to pronounce defecation (audio)
: the discharge of solid waste from the anus : the act or process of defecating
To meet the clinical definition of IBS [irritable bowel syndrome], you must have had 12 weeks … of abdominal pain or discomfort within the past year, associated with relief with defecation and a change in the form or frequency of stool.Food and Fitness Advisor
: feces, excrement
At first it was believable because, as Gov. Mario Cuomo said at the outset, "She's covered with defecation, her hair is shorn … "Ellen Goodman
William Allen Livingston lost several ounces of urine and defecation when the fusillade of .38 caliber and .00 buckshot devastated him …Joseph Wambaugh

Examples of defecation in a Sentence

Recent Examples on the Web In her plan, the African diaspora to build pay-to-use toilets across the town, to tackle open defecation, and would receive a return on their investment from the fees. Emmanuel Akinwotu, NPR, 25 Feb. 2024 Open defecation and urination create public health risks. Adam Taylor, Washington Post, 3 Feb. 2024 Kenneth Halberg The rectums of most mammals and insects absorb any remaining nutrients and water from the body's waste products prior to defecation. Jennifer Ouellette, Ars Technica, 27 Dec. 2023 And most importantly, 361 public toilets have been built, connected to the new sewers, to reduce the rate of open defecation. Oliver Franklin-Wallis, WIRED, 30 Nov. 2023 Undergoing training can also trigger FRAPs, along with a simple act like defecation. Sean Mowbray, Discover Magazine, 7 Sep. 2023 The human body loses fluids in several ways, such as sweating, breathing, urination and defecation, as well as through tears and saliva. Olivia Munson, USA TODAY, 31 Aug. 2023 But the vast majority are bacteria, and the bulk of them reside in the gut, or gastrointestinal tract (which means that each defecation probably flips the ratio in our favor). Cody Cottier, Discover Magazine, 6 May 2021 While dog diapers will certainly reduce the effects of uncontrolled urination and defecation, they should not be used as the sole means of housebreaking a new pet. Michael Pollick,, 24 Mar. 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'defecation.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1825, in the meaning defined at sense 1

Time Traveler
The first known use of defecation was in 1825

Dictionary Entries Near defecation

Cite this Entry

“Defecation.” Dictionary, Merriam-Webster, Accessed 23 Apr. 2024.

Medical Definition


variants or chiefly British defaecation
: discharge of feces
Last Updated: - Updated example sentences
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