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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; orc

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.

Even so, the authors stress that much more research is required to understand the diversity of circoviruses in cetaceans, how they are transmitted, and what effects they may have on whale and orca health.

From Science Daily • Jan. 6, 2026

The project's team also contains people who were involved in a whale sanctuary that was created to house Keiko – the orca who starred in the 1993 movie Free Willy.

From BBC • Apr. 26, 2025

The appearance of a new orca calf in Washington’s Puget Sound last month was cause for celebration.

From Los Angeles Times • 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