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.
The word woman is a noun. The word woman is a noun. The definition of a noun is a part of speech that names a person, place, thing, action or quality. 1  An example of noun is a woman.2  An example of noun is the city Paris.3  An example of noun is a table. 4  An example of noun is the act of walking.5  An example of noun is the word perfection.bbr. n. noun. 1  The part of speech that is used to name a person, place, thing, quality, or action and can function as the subject or object of a verb, the object of a preposition, or an appositive. 2  Any of the words belonging to this part of speech, such as neighbor, window, happiness, or negotiation.