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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:

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

Unlike other predatory fish like piranha, it only has small, not particularly sharp teeth.

From BBC Dec. 27, 2023

That set off a competitive scramble among other Mexican states, like feeding time at a piranha tank.

From Seattle Times Feb. 24, 2023

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

Not even Rondon, who was missing a little toe after a piranha bit it off.

From "Death on the River of Doubt" by Samantha Seiple

It was the ninth Banksy to appear in as many days in London and follows images of a goat, elephants, monkeys, a wolf, pelicans, a cat, piranhas and a rhinoceros.

From BBC Aug. 18, 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

I do this as threateningly as I can, thinking of crocodiles, sharks, black piranhas for courage.

From "I'll Give You the Sun" by Jandy Nelson

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