A specific gravity scale developed by the American Petroleum Institute (API) 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.
[ 2 syll. co-lom-be, col-o- mbe ] The baby girl name Colombe is pronounced KowL AH M- â . Colombe is of Latin origin and it is used mainly in the French language. It is derived from the element columba meaning 'dove'. Columba (Latin) is an old form of Colombe. The name Columba was borne by both men and women.
Joan /joan/ [1 syll.] as a girls' name is pronounced jone. It is of Hebrew origin, and the meaning of Joan is God is gracious.Medieval feminine version of John. Joan of Arc, the Maid of Orleans, is portrayed as a national and political hero, as well as a religious heroine.She was canonized in 1920.oan is a very prominent first name for females (#62 out of 4276, Top 1%) and also a very prominent surname for all people (#60706 out of 150436, Top 40%). (2000 U.S. Census). Displayed below is the birth name popularity of Joan for girls.