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Definition of pacu

pacu

/ˈpɑːkuː/
pa · cu

Plural:pacus
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pacu Lexical Profile

pacu Game Scores & Validity

• noun

1

Any of several species of omnivorous freshwater fish in the subfamily Serrasalminae, native to South American rivers and characterized by their distinctive, remarkably human-like square teeth adapted for crushing nuts, seeds, and plant matter.

Example

"The local aquarium recently acquired a large pacu, which quickly drew crowds eager to observe its unusual, human-like teeth."

Synonyms
View all synonyms for pacu

Word Nuance & Usage

Often confused with their close relatives, the piranhas, pacus are distinguished by their diet and dentition; pacus have square, human-like teeth used primarily for crushing nuts and seeds, whereas piranhas possess razor-sharp, interlocking teeth for shearing meat.

• Rhymes for pacu

Word Origin & Etymology

Derived from the Tupi-Guarani word 'pacu', a common name given to several related species of fruit-eating and nut-eating freshwater fish native to the Amazon and Orinoco river basins.

Cite this Entry


Wordmom. (2026). Definition of Pacu. In Wordmom Dictionary. Retrieved Oct 12, 2026, from https://wordmom.com/dictionary/pacu
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