Definition of coho in US English:


(also cohoe, coho salmon)


  • A deep-bodied North Pacific salmon with small black spots.

    Oncorhynchus kisutch, family Salmonidae

    Also called silver salmon
    • ‘Some other common names for Oncorhynchus kisutch are coho, silver, blueback, and hook nose salmon.’
    • ‘Each run of Pacific chinook, coho, sockeye, pink, and chum salmon knows how to survive in a specific spawning stream.’
    • ‘Plasma levels of GH increase following seawater exposure of coho, chum and Atlantic salmon and rainbow trout.’
    • ‘The Seymour hatchery raises and releases about 750,000 smolts annually, including pink, chum, coho, chinook salmon, cutthroat trout and steelhead.’
    • ‘The Bristol Bay region draws five species of Pacific salmon - sockeyes, kings, pinks, chums and silvers (cohos) - plus char, resident Dolly Varden trout and grayling.’


Mid 19th century: probably from Salish.