IPA: /ˌɛlɛk.trəˈkɔː.təri/
KK: /ɪˌlɛk.trəˈkɔː.tər.i/
A medical procedure that uses a heated instrument powered by electricity to burn or cut tissue, often to stop bleeding or remove tissue.
The surgeon used electrocautery to control the bleeding during the operation.
Electrocautery is formed from "electro-" (from Greek "ēlektron", meaning amber or electricity) and "cautery" (from Greek "kautērion", meaning a branding iron or instrument for burning). The word refers to a method that uses electricity to burn tissue for surgical purposes.
Think of 'electricity' ('electro-') being used to 'burn' ('cautery') tissue in medical procedures.
No commonly confused words.