noun - Pacu
is a common name used to refer to several common species of omnivorous South American freshwater fish that are related to the piranha
have pointed, razor-sharp teeth in a pronounced underbite, whereas pacu
have squarer, straighter teeth like a human. Additionally, full-grown pacu
are much larger than piranha
, reaching up to 0.9 meters (3 feet) and 25 kg (55 pounds) in weight, in the wild.