Lake trout Meaning, Definition & Usage

  1. noun flesh of large trout of northern lakes
  2. noun large fork-tailed trout of lakes of Canada and the northern United States
    salmon trout; Salvelinus namaycush.

WordNet

Definitions
  1. (Zoöl.), any one of several species of trout and salmon; in Europe, esp. Salmo fario; in the United States, esp. Salvelinus namaycush of the Great Lakes, and of various lakes in New York, Eastern Maine, and Canada. A large variety of brook trout (S. fontinalis), inhabiting many lakes in New England, is also called lake trout. See Namaycush.

Webster 1913