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urea

urea

3 5.4
A chemical the body makes that appears in urine and is often used as a fertilizer
  • noun
  • /juˈrɪə/
  • Specialized
translation icon : urea
  • The trends in lactate and urea levels exhibited during the three phases were similar.
  • urea concentration
  • urea fertilizer
  • blood urea

And he also knew that there are two toxic substances in urine, urea and uric acid.

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Examples

  • For example, patients with heart failure and altered renal function frequently have altered creatinine and urea levels.

    Academic text (2012)
  • And he also knew that there are two toxic substances in urine, urea and uric acid.

  • Part of the the long term cycle of that is you have an increased level of urea in your bloodstream.

  • If concentrations of urea get too high in your in your plasma, it becomes toxic.

  • Such data show that urea can have important toxic effects in uraemia.

    Academic text (1991)
  • The mechanisms underlying the changes in urea concentrations are unclear.

    Academic text (1993)
  • Lab values continue to show progressive, severe renal failure, with rising blood urea nitrogen and rising creatinine.

  • The chemical fertilizer N was applied as urea and di-ammonium phosphate, P as di-ammonium phosphate, and K as potassium sulfate.

    Academic text (2015)
  • In cartilaginous fishes (e.g., sharks, rays), the principal low-molecular-weight osmolyte is urea (up to several hundred mmol/l).

    Academic text (1991)
  • The nitrogen in urea helps plants grow by providing them with essential nutrients.

Synonyms

carbamide
vsurea
  • Specialized
1 8.1

A solid chemical made from ammonia and carbon dioxide found as the main solid in urine and used in fertiliser

is the same compound but uses a different scientific or alternative name

Compounds

phenolic urea
  • Specialized
9.5

A strong, heat-resistant plastic made from special resins and urea

9.0

A hard clear plastic made from chemicals that people use to make finishes, glues, and covers

Surface Forms

urea singular
ureas plural

Etymology

Urea comes from the old Greek word ouron, which means 'urine', so the name gives a clear image of the chemical first found in urine. That's why urea is the main nitrogen waste in the body and why farmers also use it as a nitrogen-rich fertilizer.