lake trout
- ☆ a large gray trout (Salvelinus namaycush) of deep lakes of the N U.S. and Canada
- any of several other species of trout found in lakes
See lake trout in American Heritage Dictionary 4
noun A freshwater food and game fish (Salvelinus namaycush) of the Great Lakes. Also called Mackinaw trout, namaycush, togue.