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.
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 Curated by Our Editors Such methods have revealed that as Antarctic ice sheets expanded during the last glacial maximum, sea ice got pushed farther offshore, forcing krill to move out of the petrels’ feeding ranges. Hannah Richter, Scientific American, 7 May 2026 Studies have revealed the velella eat zooplankton, fish eggs and krill, while ocean sunfish called mola mola, one of the ocean's largest bony fish, have been seen feasting on large flotillas of velella at sea. Dinah Voyles Pulver, USA Today, 6 May 2026 Their diet includes fish, squid, crabs, krill and other sea life. Samantha Agate, Miami Herald, 8 Apr. 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 14 May. 2026.

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

Love words? Need even more definitions?

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

More from Merriam-Webster