What is cauterize?

To cauterize is a verb referring to the searing of flesh by either the application of heat or caustic solution such that blood loss is stemmed and exposed flesh is sterilized or burnt so as to be...

Cauterize-- To seal tissue or blood vessels using a heat or electrical source.

They do nothing.

Gunpowder. Answer: Aside: Unless you are an actor in a Rambo movie don't count on this working. There are a lot of very good quick clot powders (e.g. QuikClot) available that stop all manner of blood...

One of the original ways doctors stopped patients who were severly bleeding was to use a hot iron to cauterize the wound.