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

These cleaners break down proteins and uric acid in pet urine, feces, and vomit. — Karen Brewer Grossman, Southern Living, 26 June 2026

Insulin can come from pig pancreases, estrogen from the urine of pregnant mares. — Burkhard Bilger, New Yorker, 29 June 2026

The kidneys filter uranium out of the blood and clear it from the body in urine, but some of that uranium hangs onto kidney cells and causes damage. — Idaho Statesman, 29 June 2026

Rapid urine toxicology panels are not designed to detect medetomidine. — Hannah Harris Green, STAT, 26 June 2026

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