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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These methods can also help keep track of them as climate change warms oceans, possibly changing where krill live and where humpbacks might go to feed and breed. ABC News, 19 May 2026 Robbie spoke with the naturalist, who pulled bottles of krill and whale poop from his pockets. Sarah D. Wire, USA Today, 17 May 2026 Fin whales, like other large marine life drawn to the area, feast on krill and schooling fish. Laylan Connelly, Oc Register, 14 May 2026 An altered Antarctic landscape could have significant impacts on its wildlife, from the microorganisms and algae that prop up the food chain – food for krill which, in turn, feed many of the region’s whales – to the penguins and seals that rely on sea ice for feeding and resting. Laura Paddison, CNN Money, 8 May 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

Browse Nearby Words

Cite this Entry

“Krill.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/krill. Accessed 21 May. 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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