ho·mog·e·ny 
(hə-mŏjə-nē, hō-)
(hə-mŏjə-nē, hō-)n. pl. ho·mog·e·nies
Similarity of structure between organs or parts, possibly of dissimilar function, that are related by common descent.
[Greek homogeneia, community of origin, from homogenēs, of the same race, family, kind; see HOMOGENEOUS.]