: 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
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Now there's another big one; the cost of nitrogen fertilizer, which often comes in the form of urea, is rising due to war.
—
Alan Gionet, CBS News, 3 Apr. 2026
The price of urea, a critical component in fertilizer, has spiked as the war disrupts these essential supply chains.
—Jake Angelo, Fortune, 2 Apr. 2026
Urine contains large amounts of urea, a chemical predecessor to ammonia.
—Andrew Paul, Popular Science, 1 Apr. 2026
Prices are up worldwide, with fertilizer plants closing in Bangladesh, raising the specter of an urea shortage.
—Los Angeles Times, 29 Mar. 2026
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Alan Gionet, CBS News, 3 Apr. 2026
The price of urea, a critical component in fertilizer, has spiked as the war disrupts these essential supply chains.
—Jake Angelo, Fortune, 2 Apr. 2026
Urine contains large amounts of urea, a chemical predecessor to ammonia.
—Andrew Paul, Popular Science, 1 Apr. 2026
Prices are up worldwide, with fertilizer plants closing in Bangladesh, raising the specter of an urea shortage.
—Los Angeles Times, 29 Mar. 2026
See All Example Sentences for urea
Cite this Entry
“Urea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/urea. Accessed 5 Apr. 2026.
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
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