dialyzer

from WordNet (r) 3.0 (2006)

dialyzer
    n 1: a medical instrument for separating substances in solution
         by unequal diffusion through semipermeable membranes [syn:
         {dialyzer}, {dialysis machine}]

from The Collaborative International Dictionary of English v.0.48

Dialyzer \Di"a*ly`zer\, n.
   The instrument or medium used to effect chemical dialysis.
   [1913 Webster]

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