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.
The first recorded spelling of the family name is shown to be that of Hugh Coly, which was dated 1212, in the Kings Rolls of Yorkshire, during the reign of King John, known as Lackland, 1199 - 1216.Surnames became necessary when governments introduced personal taxation.t derives from colig meaning dark or swarthy and was a descriptive word used by the fair-haired and fair-skinned Saxon invaders to describe the original Old English inhabitants, who were much darker in appearance.