A machine or device that removes moisture from food or other materials to preserve them or reduce their weight.
From dehydrate + -or/-er (a device that performs an action). The word became common in the 20th century as electric food dehydrators became popular kitchen appliances.
Food dehydrators are one of humanity's oldest preservation methods modernized—people have been sun-drying food for thousands of years, but electric dehydrators let you do it faster and more consistently.
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