Definition of pacu in English:

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Pronunciation: /ˈpako͞o/ /paˈko͞o/

noun (plural same)

A deep-bodied, herbivorous freshwater fish native to northern South America.
  • Colossoma nigripinnis, family Characidae.
Example sentences
  • Are the vegetarian pacu's teeth different from the carnivorous piranha's teeth?
  • The introduction of these exotic species, such as the pacu, can have detrimental effects for native species inhabiting South Carolina waters.
  • Additionally, full-grown pacu are much larger than piranha.


Early 19th century: from Tupi pacú.

For editors and proofreaders

Syllabification: pa·cu

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