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
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.
The two species are more specialized in foraging for krill. Michelle Del Rey, USA Today, 11 Aug. 2025 Sea birds, seals, whales, fish and others rely on krill, a preferred salmon food. Reader Commentary, Baltimore Sun, 10 Aug. 2025 The lack of food alongside the change in ocean conditions likely contributed to the drop in whale songs in 2015, as when krill and forage fish numbers increased in the third year of the study, whale songs started to increase as well, MBARI's research indicates. Jasmine Laws, MSNBC Newsweek, 7 Aug. 2025 That onboard submersible can roam Marguerite Bay to hunt for bioluminescent plankton, sponges, and even Antarctic krill swarms. Mark Ellwood, Robb Report, 2 Aug. 2025 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

Browse Nearby Words

Cite this Entry

“Krill.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/krill. Accessed 10 Sep. 2025.

Kids Definition

krill

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

More from Merriam-Webster on krill

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!