An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Dictionary Definition: urea
urea
A waste product found in your blood that results from the normal breakdown of protein in the liver. Kidneys normally remove urea from your blood and then excrete it in the urine.
