sea trout

from The Century Dictionary.

• noun Any catadromous trout or char, as the common brook-trout of the United States, Salvelinus fontinalis.
• noun A kind of weakfish; any one of the four species of sciænoid fishes of the genus Cynoscion which occur along the coast of the middle and southern United States. One of them is the squeteague. Also, sometimes, salmon-trout. See cut under weakfish.
• noun Another sciænoid fish, Atractoscion nobilis, related to the weakfish of the Atlantic States. Also called white sea-bass.
• noun A chiroid fish, as Hexagrammus decagrammus, of the Pacific coast of the United States: same as rock-trout, 2.

from the GNU version of the Collaborative International Dictionary of English.

• Any one of several species of true trouts which descend rivers and enter the sea after spawning, as the European bull trout and salmon trout, and the eastern American spotted trout.
• The common squeteague, and the spotted squeteague.
• A California fish of the family Chiridæ, especially Hexagrammus decagrammus; -- called also spotted rock trout. See Rock trout, under rock.
• A California sciænoid fish (Cynoscion nobilis); -- called also white sea bass.

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

• noun A fish of the species Salmo trutta morpha trutta, closely related to salmon and a sub species of brown trout. It is lighter in colour than the brown trout, and lives in salt water, returning to fresh water only to spawn.

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 any of several sciaenid fishes of North American coastal waters
• noun silvery marine variety of brown trout that migrates to fresh water to spawn