thermocautery

/ˌθɜrmoʊˈkɔːtəri/
noun
  1. A medical instrument or procedure that uses heat to burn or destroy tissue, often to stop bleeding or remove growths.
    • The doctor explained that thermocautery would quickly stop the bleeding from the wound.
    • Thermocautery is sometimes used to remove small skin lesions.
    • The surgeon used a thermocautery to seal the blood vessels during the operation.
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