Scleroderma is not a single disease, but a set of related disorders involving a similar set of symptoms. This makes a concise definition â and diagnosis â difficult. All forms of scleroderma do, however, share the basic characteristics of fibrosis (an excessive accumulation of tissue) and inflammation.
Urea (NH2)2CO is a chemical that comes from the breakdown of proteins. It is the main source of Nitrogen in urine and is excreted by the body as a waste product from your kidn â¦ eys.   Urea is a readily available source of Nitrogen so is used as a fertilizer and sometimes as a supplement to feed for stock.  . 60 people found this useful.t is the main source of Nitrogen in urine and is excreted by the body as a waste product from your kidn â¦ eys.   Urea is a readily available source of Nitrogen so is used as a fertilizer and sometimes as a supplement to feed for stock.   . 60 people found this useful.
urea. 1. the chief nitrogenous endproduct of protein metabolism, formed in the liver from amino acids and from ammonia compounds; found in urine, blood, and lymph. 2. a pharmaceutical preparation of urea used to lower intracranial or intraocular pressure, to induce abortion, and as a topical skin moisturizer.ureÂ´al.. the chief nitrogenous endproduct of protein metabolism, formed in the liver from amino acids and from ammonia compounds; found in urine, blood, and lymph. 2. a pharmaceutical preparation of urea used to lower intracranial or intraocular pressure, to induce abortion, and as a topical skin moisturizer.ureÂ´al.