freeze-dry

[ freez-drahy ]
/ ˈfrizˈdraɪ /

verb (used with object), freeze-dried, freeze-dry·ing.

to subject to freeze-drying.

Origin of freeze-dry

First recorded in 1945–50

British Dictionary definitions for freeze-dry

freeze-dry

verb -dries, -drying or -dried

(tr) to preserve (a substance) by rapid freezing and subsequently drying in a vacuum

Scientific definitions for freeze-dry

freeze-dry

To preserve a substance, such as food, by freezing it rapidly and placing it in a vacuum chamber, where the water frozen in the substance evaporates through sublimation.