Laboratory Procedure
freeze drying
[ freez drahy-ing ]
Subclass of:
Cryopreservation
Definitions related to freeze drying:
  • (freeze-dried) A method used to dry substances, such as food, to make them last longer. The substance is frozen and then dried in a vacuum.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • (freeze-drying) A dehydration process typically used to preserve a perishable material. The specimen is frozen and then dehydrated at low temperature in a high vacuum.
    NCI
    U.S. National Cancer Institute, 2021
  • Method of tissue preparation in which the tissue specimen is frozen and then dehydrated at low temperature in a high vacuum. This method is also used for dehydrating pharmaceutical and food products.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • (freeze-drying) Using reduced pressure to remove residual water (e.g., lyophilization) or a volatile component from a frozen powder.
    U.S. FDA Glossary
    U.S. Food & Drug Administration, 2021
  • (lyophilization) Creating a stable preparation of a biological substance by rapid freezing and dehydration of the frozen product under high vacuum.
    CRISP Thesaurus
    National Institutes of Health, 2006
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.