urea

noun
\ yu̇-ˈrē-ə How to pronounce urea (audio) \

Definition of urea

: 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 On day four, sprinkle a ½ cup of urea (46-0-0), a type of high nitrogen fertilizer (here's how to understand fertilizer numbers and letters), on top of the bale, and water it in. Arricca Elin Sansone, Country Living, "Straw Bale Gardening Is Easier Than You Think—Here's What to Know," 30 Jan. 2020 Drivers should only need to refill the urea every 10,000 miles. Mark Phelan, chicagotribune.com, "Jeep Wrangler finally has a diesel engine: Here’s what’s great about it," 15 Nov. 2019 The meat of the Greenland shark has toxically high levels of urea. The Economist, "In good taste What a museum of disgusting food reveals about human nature," 9 Jan. 2020 The Middle Eastern nation also imports other agricultural products as well as urea, which is used to make fertilizer, and Brazil has a more than $2 billion trade surplus. Washington Post, "Brazil says Iran summoned its chargé d’affaires after note," 7 Jan. 2020 After 1 month of observations, the team discovered that the higher the concentration of urea, the more sugar ants. Jake Buehler, Science | AAAS, "It’s ‘nature’s sports drink’: Ants live off urine on dry Australian island," 26 Dec. 2019 Both experts extol the virtues of moisturizers with exfoliants like urea (not urine, but a similar compound that has been shown to help moisture seep into skin), and salicylic acid, to help prevent heel cracks with regular use. NBC News, "How to care for dry, cracked heels, according to dermatologists," 14 Nov. 2019 Drivers should only need to refill the urea every 10,000 miles. Mark Phelan, chicagotribune.com, "Jeep Wrangler finally has a diesel engine: Here’s what’s great about it," 15 Nov. 2019 Drivers should only need to refill the urea every 10,000 miles. Mark Phelan, Detroit Free Press, "Jeep Wrangler finally has a diesel engine: Here's what's great about it," 12 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'urea.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of urea

1806, in the meaning defined above

History and Etymology for urea

New Latin, from French urée, from urine

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Last Updated

5 Feb 2020

Cite this Entry

“Urea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/urea. Accessed 17 Feb. 2020.

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More Definitions for urea

urea

noun
How to pronounce urea (audio)

English Language Learners Definition of urea

technical : a substance that contains nitrogen, is found in the urine of mammals and some fish, and is used in some kinds of fertilizer

urea

noun
\ yu̇-ˈrē-ə How to pronounce urea (audio) \

Kids Definition of urea

: a compound of nitrogen that is the chief solid substance dissolved in the urine of a mammal and is formed by the breaking down of protein

urea

noun
\ yu̇-ˈrē-ə How to pronounce urea (audio) \

Medical Definition of urea

: 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

More from Merriam-Webster on urea

Britannica.com: Encyclopedia article about urea

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