Anglo-Arabian

Horse

The Anglo-Arabian or Anglo-Arab is a crossbred horse that now also has its own status as a horse breed. It is a Thoroughbred (thus, the prefix "Anglo") crossed with an Arabian. The cross can be made between a Thoroughbred stallion and an Arabian mare, or vice-versa. It can also be a cross between either an Anglo-Arab and a Thoroughbred or, alternatively, an Anglo-Arab and an Arabian. Another permitted cross is between two Anglo-Arabians. No matter the cross, a horse must have a minimum 12.5% of Arabian blood to be considered an Anglo-Arabian.

http://en.wikipedia.org/wiki/Anglo-Arabian