The American Heritage® Dictionary of the English Language, 4th Edition
n. An agent or instrument used to destroy abnormal tissue by burning, searing, or scarring, including caustic substances, electric currents, lasers, and very hot or very cold instruments.
n. The process of using either extreme heat or extreme cold to either cut or seal body tissue.
n. A device used for cutting or sealing body tissue.
the GNU version of the Collaborative International Dictionary of English
n. 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.
n. The iron of other agent in cauterizing.
The Century Dictionary and Cyclopedia
n. A burning or searing, as of morbid flesh, by a hot iron or by caustic substances that burn, corrode, or destroy the solid parts of an animal body.
n. The instrument or drug employed in cauterizing.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. 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
n. the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing
Word Usage
"I set the lamp back in its place while the doctor dug in his bag and brought out a small tray and what must have been a cautery tool."