orca
Americannoun
noun
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.
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.
The orca repeatedly allowed the calf to sink before bringing it back to the surface, a difficult moment to watch but one that Aasen felt was important to record.
From BBC ● Aug. 25, 2026
A lengthy line begins to form in front of the amphitheater where an orca show will happen.
From Los Angeles Times ● Aug. 21, 2026
Researchers say ramming has not previously been documented as an orca predation strategy.
From Science Daily ● Jul. 23, 2026
Video released by the US-based NGO Beneath The Waves shows one orca holding the tail of a sunfish, with its fellow whale then charging with full force into the rotund mola, which explodes into pieces.
From Barron's ● Jul. 23, 2026
Cole spotted the glistening keel-like fins of an orca whale guiding her young calf along the shoreline in search of food.
From "Touching Spirit Bear" by Ben Mikaelsen
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
