|—vb , -dries, -drying, -dried|
|(tr) to preserve (a substance) by rapid freezing and subsequently drying in a vacuum|
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
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.