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Meaning of freeze-drying

freeze-dry•ing

Pronunciation: (frēz'drī'ing), [key]
— n.
  1. a process for drying heat-sensitive substances, as foods, blood plasma, antibiotics, and the like, by freezing the substance and then subliming the ice or other frozen solvent in a high vacuum.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.