Definition of Oncorhynchus
1. Noun. Pacific salmon including sockeye salmon; chinook salmon; chum salmon; coho salmon.
Generic synonyms: Fish Genus
Group relationships: Family Salmonidae, Salmonidae
Member holonyms: Blueback Salmon, Oncorhynchus Nerka, Red Salmon, Sockeye, Sockeye Salmon, Chinook, Chinook Salmon, King Salmon, Oncorhynchus Tshawytscha, Quinnat Salmon, Chum, Chum Salmon, Oncorhynchus Keta, Blue Jack, Coho, Coho Salmon, Cohoe, Oncorhynchus Kisutch, Silver Salmon
Medical Definition of Oncorhynchus
1. A genus of the family salmonidae (salmons and trouts). They are named for their hooked (onco) nose (rhynchus). They are usually anadromous and occasionally inhabit freshwater. They can be found in north pacific coastal areas from japan to california and adjacent parts of the arctic ocean. Salmon and trout are popular game and food fish. Various species figure heavily in genetic, metabolism, and hormone research. (12 Dec 1998)