orca

noun

or·​ca ˈȯr-kə How to pronounce orca (audio)
plural orcas or orca
: 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 : killer whale
Orcas are … the most agile and streamlined of the cetaceans. Found throughout the world, they are intelligent, social, and matriarchal.Marguerite Holloway
At the end of the food chain sustained by the krill is the orca … a spectacular animal patterned in black and white, that hunts in groups of up to thirty or forty, feeding on penguins, porpoises and seals.John Vandenbeld
There they were, wild orcas. Adrenaline rushed through my body, but I clung to the dock. I knew nothing of these waters or this northern wilderness.Alexandra Morton
… nowhere in the world are orca easier to see than on Puget Sound, where new whale-watching cruises bring you close to one of the few resident populations.Sunset

Examples of orca in a Sentence

Recent Examples on the Web
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The orcas were spread out throughout the hours-long feed, which is normal, the post said. Paloma Chavez, Sacramento Bee, 5 Mar. 2025 Some baleen whale species are capable of evading orcas — their only known predators — by using stealth-like communication, according to new research. Brendan Rascius, Miami Herald, 18 Feb. 2025 An orca whale mother has kept her dead calf by her side for at least 11 days. Bailey Richards, People.com, 13 Jan. 2025 Directed by Arin Arbus and featuring a top-notch cast including Maryann Plunkett and Crystal Finn, Koogler’s play takes place on an island in the Puget Sound, where the community has gathered in the wake of the local orca pod’s disappearance. Jackson McHenry, Vulture, 8 Jan. 2025 See All Example Sentences for orca

Word History

Etymology

borrowed from New Latin, a genus name, earlier a specific epithet (Delphinus orca, Linnaeus), going back to Latin, "a marine mammal, probably Risso's dolphin," borrowed (perhaps via Etruscan) from Greek oryg-, óryx "kind of marine mammal" — more at oryx

Note: The Roman grammarian Sextus Pompeius Festus assumed that the form of the Latin word reflected a different word orca, "kind of narrow-necked earthenware vessel," from the animal's supposed resemblance to the vase.

First Known Use

1726, in the meaning defined above

Time Traveler
The first known use of orca was in 1726

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Cite this Entry

“Orca.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/orca. Accessed 24 Mar. 2025.

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