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 krill and copepods that ingest the toxins are then eaten by the bowhead whales, which are filter feeders. Julia Jacobo, ABC News, 9 July 2025 To test how krill respond to chemical evidence of nearby penguins, Hellessey and colleagues placed krill into an aquarium at Palmer Station on Antarctica’s Anvers Island. Andrew Paul, Popular Science, 20 Mar. 2025 The solitary creatures consume upwards of 1,000 pounds of food per day, with their diet largely consisting of shrimp, krill, crabs and schooling fish, according to NOAA. Brendan Rascius, Miami Herald, 19 May 2025 Adélie penguins eat lots of fish and krill, so their guano contains nitrogen that breaks down into ammonia gas. Sara Hashemi, Smithsonian Magazine, 27 May 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 16 Jul. 2025.

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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