The walleye, Sander vitreus (family Percidae); especially (in later use) the subspecies S. v. glaucus, formerly abundant in the Great Lakes but now thought to be extinct.
Origin
Mid 19th century.
Definition of blue pike in US English:
blue pike
noun
North American
The walleye, Sander vitreus (family Percidae); especially (in later use) the subspecies S. v. glaucus, formerly abundant in the Great Lakes but now thought to be extinct.