artificial kidney

Noun

 * 1)  A  machine, an external  that cleans the blood of people with ; from the 1940s to the 2000s, not portable, but  versions now exist.


 * 1)  An implantable   to replace the function of a natural, long dreamed of but not yet feasible.
 * 2)  A bioengineered (laboratory-grown) biologic kidney (from cultured cells), still experimental.
 * 1)  A bioengineered (laboratory-grown) biologic kidney (from cultured cells), still experimental.