Definitions for "BIG DIPPER"
a group of seven bright stars in the constellation Ursa Major
elevated railway in an amusement park (usually with sharp curves and steep inclines)
The Big Dipper is a group of 7 stars (an asterism) contained in the Northern Hemisphere constellation called Ursa Major (The Great Bear). The two brightest stars in the Big Dipper (Dubhe and Merak) "point" to the North Star, Polaris. 1,000,000,000