A medical procedure that uses heat, cold, electricity, or chemicals to burn, sear, or destroy tissue. It is used to stop bleeding, remove abnormal tissue growths, or seal blood vessels during surgery.
From Greek 'kauterion' meaning branding iron, derived from 'kaiein' meaning to burn. The practice dates back to ancient civilizations where heated metal instruments were used to seal wounds and stop bleeding.
Ancient Greek physicians used red-hot metal instruments for cauterization, and amazingly, the basic principle remains unchanged today - we just use electricity instead of fire! Modern electrocautery can generate temperatures over 1000°C in a fraction of a second, instantly sealing blood vessels smaller than a hair's width.
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