A dog of a breed of mastiff originally kept for dogfighting.
More example sentences
- People who own American pit bulls, Japanese tosas, Brazilian filas, and dogo Argentinos will have to muzzle them while they are in public.
- All dogs are potentially dangerous, not just pit bulls and Japanese tosas.
- These include the Brazilian fila, the dogo Argentino, the Japanese tosa, and the American pit bull terrier.
1940s: from Tosa, the name of a former province in Japan.
Definition of tosa in:
- The US English dictionary