0 to preserve something, especially food, by freezing and then drying it:
freeze-dried coffee
1 to preserve something, esp. food, by freezing and then drying it:
Shortly thereafter, the freeze-dry process was applied to penicillin and bone, and lyophilization became recognized as an important technique for preservation of biologicals.
Larger crystals are easier to freeze-dry.
The silicon chips with embryos were then kept under liquid nitrogen until they were freeze-dried at liquid nitrogen temperature under vacuum.
It is not just about having nice hygienic conditions of freeze-drying for horticultural products.
