1) Dialysis machine 2) Medical instrument 1) Hemodialyzer 
• (n.) The instrument or medium used to effect chemical dialysis.
(di´ә-līz″әr) an apparatus for performing dialysis. hemodialyzer.
Di'a·ly`zer noun The instrument or medium used to effect chemical dialysis. 
Type: Term Pronunciation: dī′ă-lī′zĕr Definitions: 1. The apparatus for performing dialysis; a membrane used in dialysis.
[n] - a medical instrument for separating substances in solution by unequal diffusion through semipermeable membranes
dialysis machine noun a medical instrument for separating substances in solution by unequal diffusion through semipermeable membranes
an apparatus containing a semipermeable membrane for dialysis.