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.
Most of us learned the classic definition of noun back in elementary school, where we were told simply that âa noun is the name of a person, place, or thing.â That's not a bad beginning; it even clues us in to the origin of the word, since noun is derived ultimately from the Latin word nÅmen, which means ânameâ. As we see from its dictionary definition, a noun can name not only a physical thing but also abstract things such as a state (happiness) or a quality (beauty). The word is defined further in terms of the way it functions in the languageâas a subject or object in a sentence or as the object of a preposition.