<p><strong>Noun</strong></p><ul><li>plural (especially collectively) trout, (especially referring to two or more kinds or species) trouts.</li><li>any of several game fishes of the genus <em>Salmo</em>, related to the salmon. Compare brown trout, cutthroat trout, rainbow trout.</li><li>any of various game fishes of the salmon family of the genus <em>Salvelinus</em>. Compare brook trout, char, Dolly Varden, lake trout.</li><li>any of several unrelated fishes, as a bass (<em>Micropterus salmoides</em>), a drum of the genus <em>Cynoscion</em>, or a greenling of the genus <em>Hexagrammos</em>.</li></ul>