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a reversible state of central nervous system depression induced by a drug.
basal narcosis narcosis with complete unconsciousness, amnesia, and analgesia.
carbon dioxide narcosis respiratory acidosis.
nitrogen narcosis a state resembling drunkenness, with euphoria and disorientation, seen in divers below about 30 meters (100 feet) who are breathing compressed air, because of the high nitrogen content of air; some of the nitrogen enters the bloodstream and acts as a narcotic.
Etymology: Gk, basis, foundation, narkosis, a benumbing
a narcosis induced with sedatives in a surgical patient before general anesthetic is administered. It is less profound than that of general anesthesia. The patient is unresponsive to verbal stimuli but may respond to noxious stimuli. Also called basis narcosis.
Initial narcosis produced by sedatives used before administration of a general anesthetic.
See also: narcosis