: 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
Health tech is focusing on longevity, with devices monitoring metabolic and hormonal health—sometimes through blood or urine analysis—building on trends from Whoop, Oura, and Withings.
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Jijo Malayil, Interesting Engineering, 5 Jan. 2026
Dietary magnesium deficiency is uncommon because the kidneys limit the mineral's elimination through urine.
—Laura Schober, Health, 5 Jan. 2026
It is not stored in the body, and any excess vitamin C is excreted in the urine.
—Heidi Moawad, Verywell Health, 5 Jan. 2026
The condition is marked by easy bruising, pallor, and decreased urine output.
—Michele Laufik, Martha Stewart, 5 Jan. 2026
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Jijo Malayil, Interesting Engineering, 5 Jan. 2026
Dietary magnesium deficiency is uncommon because the kidneys limit the mineral's elimination through urine.
—Laura Schober, Health, 5 Jan. 2026
It is not stored in the body, and any excess vitamin C is excreted in the urine.
—Heidi Moawad, Verywell Health, 5 Jan. 2026
The condition is marked by easy bruising, pallor, and decreased urine output.
—Michele Laufik, Martha Stewart, 5 Jan. 2026
See All Example Sentences for urine
Cite this Entry
“Urine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/urine. Accessed 6 Jan. 2026.
Copy CitationKids Definition
urine
noun
: 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
urine
noun
: 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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