| anesthesia | Loss of normal sensation or feeling. A drug used to produce anesthesia. (09 Oct 1997) |
|---|---|
| nonrebreathing anaesthesia | A technique for inhalation anaesthesia in which valves exhaust all exhaled air from the circuit. (05 Mar 2000) |
| nonrebreathing mask | A mask fitted with both an inhalation valve and an exhalation valve so that all exhaled gas is vented to the external atmosphere and inhaled gas comes only from a reservoir connected to the mask. (05 Mar 2000) |
| nonrebreathing valve | A type of valve that prevents mixture of inhaled and exhaled gases. (05 Mar 2000) |