Homogeneous

(Jio-mo-je' '-ne-us). Having the same nature or qualities. Similar or identical in structure. H. Immersion. See Immersion . H. Triplets. See Homogeneous Twins. H. Twins, in embryology, when the cleavage-force is exerted to its fullest effect, the entire embryonal trace is completely divided; each resulting part may be capable of independent development, whereby two fetuses are produced remarkable for their great similarity; such offspring are known as homogeneous twins. They are always of the same sex and po e almost perfect identity of physical characteristics. So also may a secondary fi ion of one of the halves take place, as an extremely rare occurrence, homogeneous triplets resulting from such twofuld division of the original area. Such fetuses usually lie within a single chorion, enclosed by a separate or a common amniotic sac, the increased pre ure arising from the unusual contents of the limited uterine cavity favoring absorption and disappearance of the amniotic partitions.