white trout
noun
1A salmonid, specifically (in Great Britain and Ireland) the sea trout, Salmo trutta, and (in North America) the lake trout, Salvelinus namaycush.
2 US a weakfish of the genus Cynoscion.
3 US a black bass of the genus Micropterus.
Origin
Mid 17th century; earliest use found in John Smyth (1567–1641), antiquary and parliamentary diarist.