relating to the practice of freezing a dead body at extremely low temperatures in hopes of reviving it in the future.
From Greek 'kryos' (frost, cold) + '-onic' (relating to), coined in the 1960s as scientists developed the theoretical possibility of preserving biological matter through extreme freezing.
Some people have actually arranged to have their bodies frozen after death—there are companies right now storing frozen humans hoping future technology can bring them back to life, making this one of the most science-fiction-like real things you can do.
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