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killer whale
noun
: a relatively small toothed whale (Orcinus orca of the family Delphinidae) that is black above with white underparts and white oval-shaped patches behind the eyes, attains a length of 20 to 30 feet (6 to 9 meters), typically hunts in groups, and preys chiefly on sea mammals (such as seals, sea lions, and other whales), large fish, and squid
called also orca
Examples of killer whale in a Sentence
Recent Examples on the Web
This process uncovered the DNA of two animals: orcas, also known as killer whales, and broadnose sevengill sharks.
—
Brendan Rascius, Miami Herald, 30 Jan. 2025
In 1972, Scottish sailor Dougal Robertson and his family survived for 38 days at sea in a small dinghy after killer whales sunk their schooner near the Galapagos Islands.
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Outside Online, 29 Jan. 2025
Southern resident killer whales have been a target of conservation efforts for decades.
—
Evan Bush, NBC News, 3 Jan. 2025
Just like killer whales express their individuality with salmon hats, your pet’s personality might reveal fascinating insights about their behavior and preferences.
—
Scott Travers, Forbes, 25 Dec. 2024
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Word History
First Known Use
1884, in the meaning defined above
Dictionary Entries Near killer whale
Cite this Entry
“Killer whale.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/killer%20whale. Accessed 7 Feb. 2025.
Kids Definition
killer whale
noun
kill·er whale
ˈkil-ər-
: a flesh-eating mostly black toothed whale 20 to 30 feet (about 6 to 9 meters) long that travels in groups
More from Merriam-Webster on killer whale
Britannica.com: Encyclopedia article about killer whale
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