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

Then, apply an exfoliant (think: keratolytic agents, like urea, lactic acid or salicylic acid, per Camp), which will melt away any dead skin in the surface and allow the new skin to breathe. —Kiana Murden, Vogue, 15 Aug. 2024

Some common examples include glycerin and hyaluronic acid, which can hold up to 1,000 times its weight in H2O. Emollients, like ceramides, urea, or squalane, soften and protect your skin barrier. —Jessica Kasparian, SELF, 13 Aug. 2024

Think exfoliating salicylic acid, hydration-boosting niacinamide and natural moisturizing factors like urea, which is great for dry skin. —Jacqueline Kilikita, refinery29.com, 7 Aug. 2024

These are ingredients that draw water into the skin, like hyaluronic acid, niacinamide, panthenol (vitamin B5) and urea. —Jacqueline Kilikita, refinery29.com, 12 Feb. 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