4 adjectives to describe cauteries

Nitric acid, sulphuric acid (either alone or its action reduced by the addition of alcohol, oil, or turpentine), arsenic, butter of antimony, creasote, chromic acid, carbolic acid, arsenite of soda, and the actual cautery, have all been used.

When I was a boy, some 45 years ago, I saw at the old Polytechnic experiments in electricity: the electric light, the electric cautery, &c.

I at once telegraphed to London for Morgan, and, between him and Johnson, they have been opening my trachea, and burning my inside with chromic acid and the galvanic cautery.

If a lady would take a little more stimulant than was good for her he could not be persuaded to call her complaint "nervousness;" when idleness and ennui preyed upon a languid frame, he had a startling habit of rousing the patient by a mental cautery.

4 adjectives to describe  cauteries