thermocautery vs cauterization

thermocautery and cauterization both are nouns.

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

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

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

Other hypernyms of thermocautery include cauterisation, cautery.

thermocautery (noun)	cauterization (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