plural trout also trouts
1
: any of various salmonid food and sport fishes that are mostly smaller than the typical salmons and are anadromous or restricted to cool clear fresh water:
a
: any of various Old or New World fishes (genera Salmo, Salvelinus, and Oncorhynchus) compare brown trout, rainbow trout
2
: any of various fishes (such as the largemouth bass) held to resemble the true trouts

Examples of trout in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There were concerns about the tiny delta smelt, which is seen as an indicator of the waterway’s health, as well as and chinook salmon and steelhead trout, which return annually from the Pacific to spawn in freshwater rivers. Amy Taxin, Chicago Tribune, 24 Jan. 2025 Fortunately, there are 500,000 acres of mountains in Great Smoky Mountains National Park for all those people to explore, with more than 900 miles of trail that access 6,000-foot peaks, pristine trout streams, and historic farming valleys. Graham Averill, Outside Online, 21 Jan. 2025 His playbook of operations was called the Trout Memo – after the fly-fishing technique designed to entrap trout. Mike O'Sullivan, Forbes, 17 Jan. 2025 Researchers at the University of New Mexico discovered communities of bacteria thriving in salmon and trout brains. Yasemin Saplakoglu, WIRED, 5 Jan. 2025 See All Example Sentences for trout

Word History

Etymology

Middle English, from Old English trūht, from Late Latin trocta, tructa, a fish with sharp teeth, from Greek trōktēs, literally, gnawer, from trōgein to gnaw — more at troglodyte

First Known Use

before the 12th century, in the meaning defined at sense 1

Time Traveler
The first known use of trout was before the 12th century

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Cite this Entry

“Trout.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trout. Accessed 3 Mar. 2025.

Kids Definition

trout

noun
plural trout also trouts
1
: any of various edible fishes that are mostly smaller than the related salmons, are restricted to cool clear fresh water or spend time at sea before returning to fresh water to breed, and are often speckled with dark colors
2
: any of various fishes that resemble the true trouts

More from Merriam-Webster on trout

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