: 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 Although, instead of Big Macs, blue whales primarily eat huge amounts of krill. Julia Daye, Sacramento Bee, 1 May 2024 Whales with baleen, a filter-feeding system, eat smaller prey like krill, zooplankton and small fish by swallowing large gulps of water and straining it through the baleen plates. Clare Mulroy, USA TODAY, 3 Apr. 2024 Researchers have found that leopard seals likely hunt seal pups and penguins in the day, while snacking on krill at night. Katie Liu, Discover Magazine, 28 Feb. 2024 What Do Whale Sharks Eat? Whale sharks are filter feeders, primarily dining on plankton, krill, small fish, and occasionally on small squid or crustaceans. Jake Parks, Discover Magazine, 8 Jan. 2024 Twenty-two species show up during this period, coming to feed on krill, capelin, and squid in the tens of thousands. Jennifer Billock, Condé Nast Traveler, 19 Oct. 2023 Besides enhanced omega-3 absorption, krill oil is touted for its antioxidant content. Stephanie Brown, Verywell Health, 5 Mar. 2024 Spanning several years, the intense marine heatwave disrupted the food chain, including tiny organisms like krill that feed larger animals like whales. Lauren Sommer, NPR, 29 Feb. 2024 And as global warming melts sea ice at staggering rates, the habitat for krill is shrinking and humpback pregnancies are dropping. Bill Weir, CNN, 4 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'krill.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


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

Dictionary Entries Near krill

Cite this Entry

“Krill.” Dictionary, Merriam-Webster, Accessed 25 May. 2024.

Kids Definition


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

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