FUMIGATION, the process of producing smoke or fumes, as by burning surphur, frankincense, tobacco, etc., whether as a ceremony of incantation, or for perfuming a room, or for pur poses of disinfection or destruction of vermin. In medicine the term has been used of the exposure of the body, or a portion of it, to fumes such as those of nitre, salammoniac, mercury, etc.; fumigation by the injection of tobacco smoke into the great bowel, was a recognized procedure in the i8th century for the resuscitation of the apparently drowned. "Fumigated" or "fumed" oak is oak which has been darkened by exposure to ammonia vapour.