OVERBREED
OVERBREED O `ver *breed ", v. t.
overbreed
o ver breed |ˌōvərˈbrēd ˌoʊvərˈbrid | ▶verb ( past and past participle overbred ) breed or cause to breed to excess: the husband and wife were forcing the female dogs to overbreed, and litters grew up with several health problems.
over |breed |əʊvəˈbriːd | ▶verb ( past and past participle overbred ) breed or cause to breed to excess: (as adj. overbred ) : the cats are overbred and their immune system is too weak to fight infections.