in·ter·breed 
/ˌɪntɚˈbri:d/ verb
in·ter·breeds; in·ter·bred /ˌɪntɚˈbri:d/ verb /-ˈbrɛd/ in·ter·breed·ing : to cause animals of two different species to produce young animals that are a mixture of the two species [+ obj] ▪ interbreed horses with/and donkeys [no obj] ▪ horses interbreeding with donkeys
