ˈtrəd.ə, -ru̇d.ə noun
Usage: capitalized
Etymology: New Latin, from Medieval Latin trutta, tructa trout, from Late Latin tructa, trocta, a trout, a shark — more at trout
in some classifications : a subgenus of Salmo or sometimes a separate genus comprising trouts that differ from the typical trouts in being marked with small black spots and in having smaller scales and fewer vertebrae and including the brown trout of Europe and the rainbow and cutthroat trouts of America