Definition of cutthroat trout
: a large spotted trout (Oncorhynchus clarki synonym Salmo clarki) chiefly of northwestern North America that has reddish streaks on the integument of the lower jaw
— called also cutthroat
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Merriam-Webster unabridged
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Time Traveler for cutthroat trout
The first known use of cutthroat trout was circa 1891
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