Real Dictionary

salmon
countable noun: A salmon is a large silver-coloured fish.

Salmon in American English
any of several salmonoid food and game fishes (esp. genera Oncorhynchus and Salmo) of the Northern Hemisphere, with silver scales and flesh that is yellowish pink to pale red when cooked: they usually live in salt water and spawn in fresh water
river in central Ida., flowing into the Snake River: 420 mi (676 km)

salmon in American Englishesp collectively
adjective: of the color salmon
noun: a marine and freshwater food fish, Salmo salar, of the family Salmonidae, having pink flesh, inhabiting waters off the North Atlantic coasts of Europe and North America near the mouths of large rivers, which it enters to spawn

salmon in British English
noun: any soft-finned fish of the family Salmonidae, esp Salmo salar of the Atlantic and Oncorhynchus species (sockeye, Chinook, etc) of the Pacific, which are important food fishes. They occur in cold and temperate waters and many species migrate to fresh wate

salmon in Hospitality
noun: Salmon is the orangey-pink flesh of a large silver-colored fish which is eaten as food. It is often smoked and eaten raw.