The Collaborative International Dictionary
Mackinaw trout
Mackinaw trout \Mackinaw trout\ The namaycush.
Mackinaw trout
Namaycush \Nam"ay*cush\, n. [Indian name.] (Zool.) A large North American lake trout ( Salvelinus namaycush). It is usually spotted with red, and sometimes weighs over forty pounds. Called also Mackinaw trout, lake trout, lake salmon, salmon trout, togue, and tuladi.
Wiktionary
mackinaw trout
n. The lake trout or (vern North American lake trout English), ''Salvelinus namaycush''.