/nɑ:'kɒtɪk; nɑr`kɑtɪk/
n
1 substance causing sleep or (sometimes extreme) drowsiness 催眠的或麻醉的物质
*The juice of this fruit is a mild narcotic. 这种果汁有轻度催眠作用.
2 (often pl 常作复数) drug that affects the mind 麻醉剂; 毒品
*Narcotics are a major threat to health. 毒品是危害健康的大敌.
* [attrib 作定语] a narcotics agent, ie one investigating the illegal trade in narcotics 毒品探员.

adj of or having the effect of a narcotic 麻醉的; 催眠的
*a narcotic effect, substance 麻醉的作用、物质.