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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Marine heatwaves also occurred in 2018 and 2019 during the summer months, when whales fatten up on krill to prepare for the rest of the year, according to NOAA. 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 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 Blue whales, the biggest animals on the planet, will also make an occasional appearance, depending on whether krill, their favorite food, ventures closer to shore. A.k. Whitney, Oc Register, 4 June 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 21 Aug. 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

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