urea

6 ENTRIES FOUND:

urea

noun \y-ˈrē-ə\

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

Full 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

Origin of UREA

New Latin, from French urée, from urine
First Known Use: 1806

urea

noun \y-ˈrē-ə\   (Medical Dictionary)

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

urea

noun    (Concise Encyclopedia)

One of the simplest organic compounds and the first synthesized from inorganic raw materials (see inorganic compound), by Friedrich Wöhler (1800–82) in 1828. It is the diamide of carbonic acid (HNCONH; see amide; carbon dioxide). The chief nitrogenous end product of protein breakdown in mammals and some fishes, it occurs not only in urine but also in blood, bile, milk, and perspiration. It is one of the industrial chemicals produced in vast amounts. With its high nitrogen content and low price, it is a major agricultural fertilizer and animal-feed ingredient. It is also used to make urea-formaldehyde plastics (including foamed plastics; see polyurethanes), to synthesize barbiturates, as a stabilizer in explosives, and in adhesives, hydrocarbon processing, and flameproofing.

Variants of UREA

urea or carbamide

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