Onchorynchus onc·ho·rync·hus uncommon noun 1. sockeye salmon; chinook salmon; coho salmon Synonymsgenus Onchorynchus Related words Word family Onchorynchus kisutchOnchorynchus nerkaOnchorynchus tshawtscha Broader terms fish genus Parts Salmonidae Part of sockeyechinookcoho WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.