: 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
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.
Rodent droppings and urine stains were found on the floors in the miscellaneous storage room, dry storage and bar. — Sacbee.com, 9 Oct. 2026 Looking through small microscopes implanted in the mice’s heads, Patel’s team zoomed in on a particular subset of brain cells, called somatostatin neurons, as the animals reacted to the fox urine scent. — Cody Cottier, Scientific American, 7 Oct. 2026 Mice used to nest in the tool drawers, leaving droppings and urine stains…After three months, no nests, no stains, and the tools are pristine. — Alicia Geigel, Southern Living, 7 Oct. 2026 Some laboratory tests might involve only the discomfort of a blood draw or the awkwardness of collecting a urine or stool sample, but others carry the possibility of physical harm. — Miami Herald, 6 Oct. 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

Browse Nearby Words

Cite this Entry

“Urine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/urine. Accessed 14 Oct. 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

More from Merriam-Webster on urine

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!