1. a state of stupor, drowsiness, or unconsciousness produced by a drug or other substance
Usage: medical
2. impaired mental and physical performance caused by breathing compressed air at depth
Usage: diving; medical

Examples

• The anesthesia induced a deep narcosis before the surgery began.
• Carbon monoxide poisoning can lead to narcosis and death.
• Deep-sea divers must be aware of nitrogen narcosis at greater depths.
• The patient showed signs of narcosis after taking the sedative.
• Narcosis from the medication made it difficult for him to stay awake.
• The diver experienced narcosis at 100 feet underwater.
• Medical narcosis is carefully monitored during operations.