A specific gravity scale developed by the American Petroleum Institute for measuring the relative density of various petroleum liquids, expressed in degrees. API gravity is gradated in degrees on a hydrometer instrument and was designed so that most values would fall between 10Â° and 70Â° API gravity. The arbitrary formula used to obtain this effect is: API gravity = (141.5/SG at 60Â°F) - 131.5, where SG is the specific gravity of the fluid.
The name Courtney is a French baby name. In French the meaning of the name Courtney is: From the court, or short nose. From the surname of the aristocratic Courtenay family, based on the Old French word meaning short nose.Anglo-Saxon Meaning: The name Courtney is an Anglo-Saxon baby name.n French the meaning of the name Courtney is: From the court, or short nose. From the surname of the aristocratic Courtenay family, based on the Old French word meaning short nose.
Look up Kelsey in Wiktionary, the free dictionary. Kelsey is a given name meaning 'from the ship's island'. The name could be derived from an English given name Ceolsige, which meant ship's victory could be an Old English place name meaning Cenel's island..Cenel's Island is a combination of the Old English word cenel, meaning fierce, and eg, meaning island.elsey was the 201st most popular name for girls born in the United States in 2007. It was among the top 50 most popular names for girls there in the 1990s. It was last ranked among the top 1,000 most common names for boys there in 1996.