| superfamily |
Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. Modern classification has its roots in the system of Carolus Linnaeus, who grouped species according to shared physical characteristics. These groupings have been revised since Linnaeus to improve consistency with the Darwinian principle of common descent. ...
Ãâó: en.wikipedia.org/wiki/Superfamily_(biology)
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| superfamily |
In linguistics, a superfamily (or macrofamily) is a phyletic unit encompassing several language families. The term is generally used for conjectural families, e.g. the Nostratic, Dene-Caucasian, Altaic, and Proto-World groupings. The term is typically invoked to describe theoretical associations between established language families (e.g. between Turkic, Mongolian, and Tungusic languages, in the case of Altaic), and has come to carry a connotation of hypothesis, and therefore, controversy. ...
Ãâó: en.wikipedia.org/wiki/Superfamily_(linguistics)
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| superior |
Superior is the county seat of Douglas County, Wisconsin. A city with a population of 27,368 as of the 2000 census, Superior is located at the western end of Lake Superior in northwestern Wisconsin. It is often overshadowed today, as it was in the past, by its twin port of Duluth, Minnesota. Duluth and Superior form a single metropolitan area called the Twin Ports and share a harbor that is one of the most important ports on the Great Lakes. ...
Ãâó: en.wikipedia.org/wiki/Superior_(city),_WI
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| superior mesenteric artery |
The superior mesenteric artery arises from the anterior surface of the aorta, just inferior to the origin of the celiac trunk, and supplies the intestine from the duodenum and pancreas to the left colic flexure. ...
Ãâó: en.wikipedia.org/wiki/Superior_mesenteric_artery
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| superoxide |
Superoxide is a reactive anion and free radical, formally O2-. It is produced most easily by burning rubidium or caesium in oxygen. Other superoxides, including potassium superoxide, are also known. It has an unpaired electron, is not particularly stable, and spontaneously decomposes into peroxide and oxygen over time. In phagocytes, superoxide is produced in large quantities by the enzyme NADPH oxidase for use in oxygen-dependent killing mechanisms. ...
Ãâó: en.wikipedia.org/wiki/Superoxide
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