cautery

noun

1. an instrument or substance used to destroy tissue for medical reasons (eg removal of a wart) by burning it with a hot iron or an electric current or a caustic or by freezing it

   noun.artifact

   Synonyms cauterant

   Source: WordNet 3.0

2. the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing

   noun.act

   Synonyms cauterisation cauterization

   Source: WordNet 3.0

3. A burning or searing, as of morbid flesh, with a hot iron, or by application of a caustic that will burn, corrode, or destroy animal tissue.

   noun

   Source: webster1913