freeze-drying, lyophilization, lyophilisation -- (a method of drying food or blood plasma or pharmaceuticals or tissue without destroying their physical structure; material is frozen and then warmed in a vacuum so that the ice sublimes)
Overview of verb freeze-dry
The verb freeze-dry has 1 sense
freeze-dry -- (preserve by rapid freezing and subsequently drying in a vacuum; "freeze-dry the strawberries")