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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.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Pacu. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/pacu
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