: waste material that is secreted by the kidney in vertebrates, is rich in end products of protein metabolism together with salts and pigments, and forms a clear amber and usually slightly acid fluid in mammals but is semisolid in birds and reptiles

Examples of urine in a Sentence

Recent Examples on the Web
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Allergens are proteins that are found in dog saliva, dander and urine. Madeline Gunderson, USA Today, 2 July 2026 Discolored urine, for instance, is often an early sign that someone is not well-hydrated. Nicole Bennett, AJC.com, 1 July 2026 Sowa notes that a few common signs of dehydration to watch out for include dark urine, dizziness, and increasing fatigue among others like lightheadedness, headaches or dry mouth. ABC News, 7 July 2026 In this part of Ogun State, a third of residents screened at a urine testing clinic were found to have active schistosomiasis infection. William McCarthy, NPR, 4 July 2026 See All Example Sentences for urine

Word History

Etymology

Middle English, from Anglo-French, from Latin urina, from urinari to dive; akin to Sanskrit vār water and perhaps to Sanskrit varṣati it rains, Greek ourein to urinate

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of urine was in the 14th century

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Cite this Entry

“Urine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/urine. Accessed 8 Jul. 2026.

Kids Definition

: waste material that is secreted by the kidneys, is rich in the end products of protein breakdown, and is usually a yellowish liquid in mammals but semisolid in birds and reptiles

Medical Definition

: waste material that is secreted by the kidney, is rich in end products (as urea, uric acid, and creatinine) of protein metabolism together with salts and pigments, and forms a clear amber and usually slightly acid fluid

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