Kept very cold using a machine or device to preserve food and prevent it from spoiling.
From Latin 're-' (again) and 'frigidus' (cold). The word evolved in the 19th century as mechanical cooling technology developed, combining the prefix meaning 'again' with the root for cold to describe the process of making something cold again.
Before electric refrigerators were invented in the late 1800s, people used iceboxes filled with blocks cut from frozen lakes—some families would harvest and store ice from winter to last through summer! The shift to 'refrigerated' as a common word marks one of humanity's most transformative inventions.
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