1) Cauterant 2) Cautery 
The surgical destruction of tissue via the application of extreme cold, aswith liquid nitrogen. ... (09 Oct 1997) ... 
(kri″o-kaw´tәr-e) cauterization by freezing, using a substance such as liquid nitrogen or carbon dioxide snow, or a very cold instrument. Called also cold cautery.
Type: Term Pronunciation: krī′ō-kaw′ter-ē Definitions: 1. Any substance, such as liquid nitrogen or carbon dioxide snow, or a low temperature instrument, the application of which causes destruction of tissue by freezing. Synonyms: cold cautery
[n] - an instrument for destroying tissue by freezing it 2. [n] - application of a substance that destroys tissue by freezing it
cryocautery 1. Any substance, such as liquid air or carbon dioxide snow, or a low temperature instrument, the application of which causes destruction of tissue by freezing. 2. The extreme use of cold in destroying tissue.
noun application of a substance that destroys tissue by freezing it