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Thesaurus: freeze-dryer

equipment used to preserve a perishable material; works by freezing the material and then reducing the surrounding pressure to allow the frozen water in the material to sublimate directly from the solid phase to the gas …

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  1. n. equipment used to preserve a perishable material; works by freezing the material and then reducing the surrounding pressure to allow the frozen water in the material to sublimate directly from the solid phase to the gas phase.