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piranha

American  
[pi-rah-nuh, -ra-, -nyuh] / pɪˈrɑ nə, -ˈræ-, -njə /

noun

piranhas, plural piranha plural
  1. any of several small South American freshwater fishes of the genus Serrasalmus that eat other fish and sometimes plants but occasionally also attack humans and other large animals that enter the water.


piranha British  
/ pɪˈrɑːnjə /

noun

  1. any of various small freshwater voracious fishes of the genus Serrasalmus and related genera, of tropical America, having strong jaws and sharp teeth: family Characidae (characins)

"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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of piranha

1865–70; < Portuguese < Tupi

Explanation

A piranha is a fish with famously sharp teeth. Don't go swimming in certain South American rivers if you want to avoid piranhas! These freshwater fish are terrifyingly described as "voraciously carnivorous," meaning they eat meat with great enthusiasm. Humans aren't often bitten by piranhas, but it does happen in some parts of South America. You also can't buy a piranha as a pet in many parts of the world — and if you do, it's best not to get two of them, since the weaker fish is often killed by the stronger one.

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Vocabulary lists containing piranha

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.

See Examples For:

"Accidents can happen, and maybe a wolf fish or a piranha will try to take a chunk out of you, but ultimately they're not really there to get you," he said.

From BBC Oct. 11, 2024

As Richard, the deceased father of Jenna Ortega’s Astrid Deetz, Santiago Cabrera got a combination of prosthetics and makeup for the puppet piranha fish biting at his face, neck and body.

From Los Angeles Times Sep. 12, 2024

“While she’s icky-sweet on her cooking show, Sue is really a piranha type,” White once said.

From Seattle Times Dec. 31, 2021

White once said her character Sue Ann Nivens in “The Mary Tyler Moore Show” could be “icky-sweet” but was “really a piranha type.”

From Washington Times Dec. 31, 2021

Mary Lou grabbed the ropes that had held her to Tane over the piranha tank.

From "Beauty Queens" by Libba Bray

It comes a day after painted swimming piranhas on to a City of London Police sentry box, which was first spotted on Sunday morning.

From BBC Aug. 12, 2024

Despite their size, swarms of these insects can cause considerable damage by shredding plant life to bits like ravenous piranhas..

From Salon Feb. 26, 2024

Known as vegetarian piranhas, pacu can reach up to 1 meter long.

From Science Magazine Jan. 4, 2023

Reggie was placed there by two reptile enthusiasts who’d raised him in their San Pedro homes, alongside snapping turtles, piranhas, rattlesnakes and desert tortoises.

From Los Angeles Times May 24, 2022

“No doubt it would be a grand adventure,” she interjected, for she had no wish to dream about flesh-eating piranhas that night; the murderous pheasants had been bad enough.

From "The Unseen Guest" by Maryrose Wood

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