thermocautery vs cautery

thermocautery and cautery both are nouns.

Word	Noun	Adjective	Verb	Adverb
thermocautery	Yes	No	No	No
cautery	Yes	No	No	No

As nouns, cautery is a hypernym of thermocautery; that is, cautery is a word with a broader meaning than thermocautery:

thermocautery: cautery (destruction of tissue) by heat
cautery: the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing

Other hypernyms of thermocautery include cauterisation, cauterization.

thermocautery (noun)	cautery (noun)
cautery (destruction of tissue) by heat	the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing
	an instrument or substance used to destroy tissue for medical reasons (e.g., removal of a wart) by burning it with a hot iron or an electric current or a caustic or by freezing it