: 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
To set off biomineralization, the team placed the scaffold in a growing medium with urea and calcium.
—
Margherita Bassi, Smithsonian Magazine, 24 Apr. 2025
Products with urea have been shown to help manage skin conditions like eczema, psoriasis, and keratosis.
—Sherri Gordon, Health, 19 Mar. 2025
The bacteria are able to convert urea — which the bacteria produce as waste — and calcium into calcium carbonate crystals.
—Keith Cooper, Space.com, 6 Apr. 2025
In people with chronic kidney disease, so much urea is excreted with sweat that the accumulation of uric acid crystals makes the skin look frosted.
—IEEE Spectrum, 22 Oct. 2014
See All Example Sentences for urea
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Margherita Bassi, Smithsonian Magazine, 24 Apr. 2025
Products with urea have been shown to help manage skin conditions like eczema, psoriasis, and keratosis.
—Sherri Gordon, Health, 19 Mar. 2025
The bacteria are able to convert urea — which the bacteria produce as waste — and calcium into calcium carbonate crystals.
—Keith Cooper, Space.com, 6 Apr. 2025
In people with chronic kidney disease, so much urea is excreted with sweat that the accumulation of uric acid crystals makes the skin look frosted.
—IEEE Spectrum, 22 Oct. 2014
See All Example Sentences for urea
Cite this Entry
“Urea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/urea. Accessed 4 May. 2025.
Copy CitationKids Definition
urea
noun
: 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
: 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share