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Meaning of diffusate

dif•fu•sate

Pronunciation: (di-fy'zāt), [key]
— n. Physical Chem.
  1. (in dialysis) the solution or the crystalline material that passes into it through the semipermeable membrane; dialyzate.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.