(n) :
a type or instance of breeding separate strains of the same species in order to create new traits; a type or instance of breeding members of similar albeit distinct species. i.e. horse + donkey = mule
(n) :
a type or instance of breeding separate strains of the same species in order to create new traits; a type or instance of breeding members of similar albeit distinct species. i.e. horse + donkey = mule