| Noun | 1. | genus Oncorhynchus - Pacific salmon including sockeye salmon; chinook salmon; chum salmon; coho salmon fish genus - any of various genus of fish family Salmonidae, Salmonidae - salmon and trout blueback salmon, Oncorhynchus nerka, red salmon, sockeye, sockeye salmon - small salmon with red flesh; found in rivers and tributaries of the northern Pacific and valued as food; adults die after spawning Oncorhynchus tshawytscha, quinnat salmon, chinook salmon, king salmon, chinook - large Pacific salmon valued as food; adults die after spawning chum salmon, Oncorhynchus keta, chum - a large Pacific salmon with small spots on its back; an important food fish blue jack, Oncorhynchus kisutch, silver salmon, coho, coho salmon, cohoe - small salmon of northern Pacific coasts and the Great Lakes |