parabiosis
[ para- + Gr. biōsis, mode of living]
The joining together of two individuals. It may occur congenitally as with conjoined twins or may be produced surgically for experimentation in animals.
heterochronic p.An attempt to reversing aging in which the blood supply of a younger animal is connected to that of an older animal. It has been used experimentally in animals.
parabiotic,
adj.