The material that passes through the membrane in dialysis and usually contains substances that diffuse easily in solution.diffusate
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for dialysate
Historical Examples of dialysate
On dialysing for twenty-four hours, some of the active principle went into the dialysate and some remained in the dialyser.Barium, A Cause of the Loco-Weed Disease
Albert Cornelius Crawford