chum salmon

noun

variants or less commonly chum
: a metallic bluish green salmon (Oncorhynchus keta) of the northern Pacific Ocean and Arctic Ocean that may reach a length of about 3.5 feet (1 meter) but is typically smaller

Note: Upon entering fresh water to spawn, the male chum salmon develops large, sharp teeth and becomes dark green to brown with reddish-purple vertical stripes.

Examples of chum salmon 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.
By checking fragments of DNA in a sample against a library of fish genomes, Parsons and Van Cise can identify the exact species a whale ate over a roughly 24-hour period and in what relative amounts—for instance, 60 percent Chinook salmon, 30 percent chum salmon, 10 percent halibut. — Kelso Harper, Scientific American, 16 Dec. 2025 Puget Sound, had an healthy population of chum salmon this fall, which strengthens the argument that the recent salmon hat sighting was a goofy killer whale’s response to abundance of food. — Scott Travers, Forbes, 25 Dec. 2024 While chinook and chum salmon are restricted, sockeye salmon, a less traditionally popular and available fish, has become an increasingly viable alternative. — Paige Vega, Vox, 3 July 2024 Researchers have also observed chum salmon increasing their populations in cooler, northern latitudes. — Christian Thorsberg, Smithsonian Magazine, 24 May 2024 See All Example Sentences for chum salmon

Word History

Etymology

chum entry 5

First Known Use

1907, in the meaning defined above

Time Traveler
The first known use of chum salmon was in 1907

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Cite this Entry

“Chum salmon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chum%20salmon. Accessed 2 Oct. 2026.

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