excretion

noun
ex·​cre·​tion | \ik-ˈskrē-shən \

Definition of excretion 

1 : the act or process of excreting

2 : something excreted especially : metabolic waste products (such as urea and carbon dioxide) that are eliminated from the body

Examples of excretion in a Sentence

The kidneys are organs of excretion.

Recent Examples on the Web

In addition, the kidneys rapidly filter the molecules out of the blood for excretion—a benefit when the cargo is radioactive. Mitch Leslie, Science | AAAS, "Mini-antibodies discovered in sharks and camels could lead to drugs for cancer and other diseases," 10 May 2018 Police transported the man to a detox facility and cited him for public excretion. Samantha Swindler, OregonLive.com, "Would-be renter leaves beer in cabin that's really a dog house: Forest Grove police log," 12 Mar. 2018 The Houston Health Department said oak, pine and ash trees will be particularly high in pollen excretion. Jay R. Jordan, Houston Chronicle, "Be warned, Houston: Tree pollen will be high this weekend," 9 Mar. 2018 One room is only for excretion, because groundhogs are very clean animals. John Benson, cleveland.com, "Olmsted Falls Mayor continues budget cuts laying off five city employees," 31 Jan. 2018 These may include plants, minerals and even animal excretions. Michael Nedelman, CNN, "FDA takes on homeopathic drugs with potential safety risks," 19 Dec. 2017 Lead and gout have been linked; lead exposure is suspected as a cause of gout by inhibiting urinary uric acid excretion. Philly.com, "For Franklin, it came down to lifestyle, family history," 8 Oct. 2017 For month by month, the menstrual excretion takes away her sins. Puja Changoiwala, SELF, "Why India's Widespread Period Shaming Must End," 25 Sep. 2017 In response, WADA conducted studies on the drug’s excretion from the body. Rachel Axon, USA TODAY, "WADA sees significant increase in positive tests due to meldonium," 24 Aug. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'excretion.' 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 excretion

1578, in the meaning defined at sense 1

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Time Traveler for excretion

The first known use of excretion was in 1578

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More Definitions for excretion

excretion

noun

English Language Learners Definition of excretion

: the act or process of passing waste from the body : the process of excreting waste

: waste passed from the body : excreted matter

excretion

noun
ex·​cre·​tion | \ik-ˈskrē-shən \

Kids Definition of excretion

1 : the act or process of separating and giving off cellular waste matter from the body excretion of urine

2 : waste material given off from the body

excretion

noun
ex·​cre·​tion | \ik-ˈskrē-shən \

Medical Definition of excretion 

1 : the act or process of excreting

2a : something eliminated by the process of excretion that is composed chiefly of urine or sweat in mammals including humans and of comparable materials in other animals, characteristically includes products of protein degradation (as urea or uric acid), usually differs from ordinary bodily secretions by lacking any further utility to the organism that produces it, and is distinguished from waste materials (as feces) that have merely passed into or through the digestive tract without being incorporated into the body proper

b : a waste product (as urine, feces, or vomit) eliminated from an animal body : excrement not used technically

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