- the group of seven bright stars in Ursa Major resembling a dipper in outline.
- the US and Canadian name for Plough
- (in amusement parks) a narrow railway with open carriages that run swiftly over a route of sharp curves and steep inclinesAlso called: roller coaster
American English name for the seven-star asterism (known in England as the plough; see Charles’s Wain) in the constellation Ursa Major, first attested 1833 as simply the Dipper (sometimes Great Dipper, its companion constellation always being the Little Dipper). See dipper.
- An asterism composed of seven stars in the constellation Ursa Major. Four stars form the bowl and three form the handle in the outline of a dipper.