(ichthyology) Any of the carnivorous or frugivorous freshwater fish living in South American rivers and belonging to the subfamily Serrasalminae.

plural of piranha

Malapropism of social pariah.

Synonym of red-bellied piranha

Synonym of piranha solution

A mixture of sulfuric acid and hydrogen peroxide.

Pygocentrus nattereri, a species of piranha native to South America.