the growth of an organism outside the body in which it would normally be found, such as the growth of an embryo outside the mother's body or the growth of bacteria outside the body of a host
Derived forms
ectogenetic (ˌectogeˈnetic) or ectogenic (ˌectoˈgenic) or ectogenous (ɛkˈtɒdʒɪnəs)