parabiosis

The natural or surgical union of anatomical parts of two organisms, usually involving exchange of blood, as in the development of conjoined twins or in certain transplant operations.

A temporary suspension of conductivity or excitability in a nerve.

The temporary abolition of conductivity and excitability in a nerve.

The (natural or surgical) union of parts of two organisms (especially of their vascular systems)

The fusion of two embryos to form conjoined twins