Narcotic (narc)

1. Pertaining to a substance that produces insensibility or stupor.
2. A narcotic drug. Narcotic analgesics, derived from opium or produced synthetically, alter perception of pain; induce euphoria, mood changes, mental clouding, and deep sleep; depress respiration and the cough reflex; constrict the pupils; and cause smooth muscle spasm, decreased peristalsis, emesis, and nausea. Repeated use of narcotics may result in physical and psychologic dependence. 

Mosby (2009-02-11). 

© Matt Dillard 2012