salmon trout

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of various large trouts, especially the lake trout or the steelhead.

from The Century Dictionary.

• noun A kind of salmon.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun rainbow trout

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun flesh of marine trout that migrate from salt to fresh water
• noun speckled trout of European rivers; introduced in North America
• noun large fork-tailed trout of lakes of Canada and the northern United States