Dialyzer

noun

1. A machine equipped with a semipermeable membrane and used for performing dialysis.
2. The parchment-paper, or septum, stretched over a wooden or gutta-percha ring, used in the operation of dialysis. Also spelled dialyser.
3. The instrument or medium used to effect chemical dialysis.
4. The part of a hemodialysis machine that performs filtration by unequal diffusion through membranes
5. a medical instrument for separating substances in solution by unequal diffusion through semipermeable membranes