포유류의 단백질 대사 결과 생기는 질소 화합물로, 주로 소변으로 배출되는 무색의 결정체.
A colorless crystalline compound that is the primary nitrogenous end product of protein metabolism in mammals, typically excreted in urine and also used in fertilizers and plastics.
예문:
"The kidneys filter urea from the blood to be excreted as a component of urine."
"Urea is widely used in the agricultural industry as a high-nitrogen fertilizer to promote plant growth."
"Synthetic urea is an essential raw material in the production of certain resins and plastics."