krill

noun

: planktonic crustaceans and their larvae (order or suborder Euphausiacea and especially genus Euphausia) that constitute the principal food of baleen whales

Examples of krill in a Sentence

Recent Examples on the Web
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The seals’ population decline is also tied to climate change, the IUCN found, which is reducing the availability of krill, their main food source. Andrew Freedman, CNN Money, 9 Apr. 2026 Their diet includes fish, squid, crabs, krill and other sea life. Samantha Agate, Miami Herald, 8 Apr. 2026 Fishing in Antarctica for krill surged to a record last season, forcing an early closure of fishing activity for the first time. CBS News, 1 Apr. 2026 Even baleen whales eat swarms of tiny animals known as krill. Sara Kiley Watson, Popular Science, 18 Mar. 2026 See All Example Sentences for krill

Word History

Etymology

Norwegian kril fry of fish

First Known Use

1907, in the meaning defined above

Time Traveler
The first known use of krill was in 1907

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Cite this Entry

“Krill.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/krill. Accessed 29 Apr. 2026.

Kids Definition

krill

noun
: small crustaceans and their larvae that make up plankton and form a major food of baleen whales

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