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.
Identifying a Noun. A noun is a part of speech that denotes a person, animal, place, thing, or idea. The English word noun has its roots in the Latin word nomen, which means âname.â Every language has words that are nouns. As you read the following explanations, think about some words that might fit into each category.