Causes. Retroperitoneal fibrosis occurs when extra fibrous tissue forms in the area behind the stomach and intestines. The tissue forms a mass (or masses) that can block the tubes that carry urine from the kidney to the bladder.
noun /naÊn/ n a word or group of words that refers to a person, place, or thing or any syntactically similar word (as modifier): a noun phraseAbbreviation: N, n Related adjective(s): nominal Etymology: 14th Century: via Anglo-French from Latin nÅmen name. Ënounal adj.
A Noun is a word used as a name of a person, place, thing, state, quality, activity, action etc... Examples: â¢ Mr. John is our English teacher. In this sentence the words Mr. John and teacher are Nouns. â¢ Harvard University is the oldest University. Noun is a word used as a name of a person, place, thing, state, quality, activity, action etc... Examples: â¢ Mr. John is our English teacher. In this sentence the words Mr. John and teacher are Nouns. â¢ Harvard University is the oldest University.