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orca

American  
[awr-kuh] / ˈɔr kə /

noun

  1. the killer whale, Orcinus orca.


orca British  
/ ˈɔːkə /

noun

  1. a killer whale

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of orca

First recorded in 1650–60; from New Latin, former taxonomic name, from Latin, a kind of whale, perhaps a grampus, from Greek óryga (accusative of óryx ), a kind of large fish, perhaps a narwhal. The g became c under the influence of Latin orca, a kind of large earthenware vessel with a narrow neck; see orc

Explanation

Orcas, also called killer whales, are actually members of the dolphin family. Orcas hunt in cooperative groups called pods and have distinctive black and white coloring. Orcas are familiar animals to many people from popular culture and a time period (most of the 20th century) when it was common to keep them in captivity. For many years, it was possible to visit an aquarium and see orcas perform tricks. Movies like "Free Willy" popularized orcas and also helped build opposition to keeping orcas captive. The name orca comes from the Latin name for their genus. Earlier, mythical sea monsters were commonly called orc.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Researchers documented two separate hunting events in which three white sharks were killed while they were conducting regular orca monitoring.

From Science Daily • Nov. 3, 2025

Brimming with dark humor, the novel follows a failed Pitbull impersonator’s encounter with a captive orca at the Miami Seaquarium.

From Los Angeles Times • Apr. 26, 2025

Campaigners and the zoo's managers have been locked in disagreement about what should happen to the orca whales with the French government already blocking one proposal to rehome them.

From BBC • Jan. 5, 2025

I’ve written about sailors trading tips online over orca attacks and how savvy TikTok marketing revived a restaurant’s business.

From New York Times • Nov. 26, 2024

As long as you weren’t an orca, they would be your friend instantly.

From "Chronicles of a Lizard Nobody" by Patrick Ness

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