urea

noun

yu̇-ˈrē-ə 

: a soluble weakly basic nitrogenous compound CO(NH₂)₂ that is the chief solid component of mammalian urine and an end product of protein decomposition, is synthesized from carbon dioxide and ammonia, and is used especially in synthesis (as of resins and plastics) and in fertilizers and animal rations

Examples of urea in a Sentence

Recent Examples on the Web

This fragrance-free formula focuses on replenishing moisture with its heavy-hitting mix of lipids, squalane, glycerin, urea, and amino acids, which the brand labels as its hydro lipid blend. —Sarah Han, Allure, 30 Sep. 2024

There are four ways to test for H. pylori: a urea breath test, a stool antigen test, an upper endoscopy, and a blood test. —Elizabeth Yuko, Health, 26 Sep. 2024

Solutions containing salicylic acid, urea, and other compounds can also help. —Mark Gurarie, Verywell Health, 26 Sep. 2024

One of the byproducts of burning protein is a waste product called urea. —Alex Hutchinson, Outside Online, 10 Sep. 2024

Word History

Etymology

New Latin, from French urée, from urine

First Known Use

1806, in the meaning defined above

Phrases Containing urea

• urea-formaldehyde

Kids Definition

urea

noun

yu̇-ˈrē-ə 

: a soluble nitrogen-containing compound that is the chief solid substance in the urine of mammals and is an end product of protein breakdown

Medical Definition

urea

noun

yu̇-ˈrē-ə 

: a soluble weakly basic nitrogenous compound CH₄N₂O that is the chief solid component of mammalian urine and an end product of protein decomposition and that is administered intravenously as a diuretic drug

called also carbamide