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

Emergency responders tested the urine of one of the children and found that fentanyl was in the child’s system. —Saleen Martin, USA TODAY, 4 Mar. 2025

Her most recent study examined fluoride concentration in the urine of pregnant, low-income Hispanic women in Los Angeles. —Cindy Krischer Goodman, Orlando Sentinel, 3 Mar. 2025

Hall insightfully explained to the audience that while oral swabs can sometimes give false positives from inhaling secondhand smoke, urine tests remain the most reliable method for detecting marijuana use. —Amber Corrine, VIBE.com, 28 Feb. 2025

One hard measure of success, though, is the number of urine tests that come back clean. —Grant Stringer, The Mercury News, 23 Feb. 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