urine

noun

ˈyər-ən 

ˈyu̇r-

: 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

urinous

ˈyər-ə-nəs 

ˈyu̇r-

adjective

Examples of urine in a Sentence

Recent Examples on the Web

Using machine learning, a form of artificial intelligence, Swedish researchers analyzed urine samples from more than 2,000 men with prostate cancer, along with a control group. —Melissa Rudy, FOXNews.com, 1 May 2025

Now, a collaboration between scientists from Sweden, the UK, and China has identified a promising set of new, precise biomarkers — found in a simple urine sample. —Discover Magazine, 29 Apr. 2025

Microplastics Are a 'Big Time Bomb,' Says Researcher Who Found That 57 Million Tons of Plastic Are Produced Annually For their research, the study authors looked at urine samples that contained phthalates, as well as health and environmental data from 200 countries and territories. —Cara Lynn Shultz, People.com, 29 Apr. 2025

Their inflammatory markers were monitored through blood, urine, and stool samples, and colon polyps were examined through high-definition colonoscopies. —Thomas G. Moukawsher, MSNBC Newsweek, 24 Apr. 2025

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

Rhymes for urine

• curran

Kids Definition

urine

noun

ˈyu̇r-ən 

: 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

ˈyu̇r-ən 

: 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