IPA: /ˌɛlɛk.trəˈsɜːrdʒəri/
KK: /ɪˌlɛk.trəˈsɜr.dʒər.i/
A type of surgery that uses high-frequency electric current to cut or destroy tissue, often used for cauterization.
The doctor performed electrosurgery to remove the tumor safely.
Electrosurgery → It is formed from "electro-" (from Greek "ēlektron", meaning amber or electricity) and "surgery" (from Greek "cheirourgia", meaning work done by hand). The word refers to surgical procedures that use electrical currents to cut or destroy tissue.
Think of 'electricity' ('electro-') being used in 'surgery' ('cheirourgia') to perform operations — that's what electrosurgery means.
No commonly confused words.