the GNU version of the Collaborative International Dictionary of English
n. A south American fresh water fish of the genus Serrasalmo of many species, remarkable for its voracity. When numerous they attack man or beast, often with fatal results.
The Century Dictionary and Cyclopedia
n. The vernacular name of a very voracious South American fish, Serrasalmo piraya, and other characins of the subfamily Serrasalmoninæ (which see).
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. small voraciously carnivorous freshwater fishes of South America that attack and destroy living animals
Word Usage
"Then there is habichuela, a usage popular in Puerto Rico, Cuba, el resto del área caribe, Colombia and many regional variations in South America."