Uremia: The presence of excessive amounts of urea in the blood, which may be a sign of kidney disease or failure. It is also referred to as azotemia. See also urea. From Healthy Resources 10 Rheumatoid Arthritis Symptoms How IL Inhibitors Work to Treat PsoriasisModerate to Severe UC: Targeted Solutions Featured Centers What Are the Best PsA Treatments for You?Understanding Biologics 10 Things People With Depression Wish You Knew