1. The surgical use of electricity for cutting desiccation, and coagulation; usually, by applying radio-frequency current to a blade or wire loop.
2. Surgery performed with various electric instruments which operate on high-frequency electric currents.
3. The use of electricity to perform surgical procedures; such as, the use of electricity to simultaneously cut tissue and to stop or decrease bleeding.
4. Medical surgery which is performed using an active electrode in the form of a disk, bulb, or needle.