urine

American  

[yoor-in] / ˈyʊər ɪn /

noun

1. the liquid-to-semisolid waste matter excreted by the kidneys, in humans being a yellowish, slightly acid, watery fluid.

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urine British  

/ ˈjʊərɪn /

noun

1. the pale yellow slightly acid fluid excreted by the kidneys, containing waste products removed from the blood. It is stored in the urinary bladder and discharged through the urethra

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urine Scientific  

/ yr′ĭn /

1. A liquid containing multiple waste products of metabolism, especially urea and other nitrogenous compounds, that are filtered from the blood by the kidneys. Urine is stored in the urinary bladder and is excreted from the body through the urethra.

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urine Cultural  

1. The fluid produced by the kidneys, consisting of water and dissolved substances, that is stored in the bladder and discharged through the urethra. (See excretory system.)

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Etymology

Origin of urine

1275–1325; Middle English < Old French < Latin ūrīna

Example Sentences

Under Plan B, the four astronauts are using personal reusable containers called "collapsible contingency urine disposal devices."

From Barron's • Apr. 9, 2026

Dill asked Koch to remove a urine hose and let the system run for one minute.

From The Wall Street Journal • Apr. 2, 2026

To validate the approach, researchers used 352 urine samples that had already been collected during routine testing at Basingstoke and North Hampshire Hospital.

From Science Daily • Mar. 31, 2026

At the same time, M proteins can also cause the blood to thicken and concentrate in urine, both of which can cause renal problems.

From Slate • Mar. 29, 2026

The rest of the time they crowded into crevices that were easily found by the streaks of dried urine staining the rocks.

From "A Girl Named Disaster" by Nancy Farmer

Related Words

• droppings
• dung
• feces
• manure