Definition of "Dipper" :

noun: small stocky diving bird without webbed feet; frequents fast-flowing streams and feeds along the bottom

noun: small North American diving duck; males have bushy head plumage

noun: a ladle that has a cup with a long handle

noun: a group of seven bright stars in the constellation Ursa Major

noun: a cluster of seven stars in Ursa Minor; at the end of the dipper's handle is Polaris