narcotic

Từ điển Oxford Advanced Learner 8th

nar·cot·ic [narcotic narcotics] noun, adjective BrE [nɑːˈkɒtɪk] NAmE [nɑːrˈkɑːtɪk]
noun
1. (formal)a powerful illegal drug that affects the mind in a harmful way. Heroin and ↑cocaine are narcotics
•a narcotics agent (= a police officer investigating the illegal trade in drugs)
2. (medical)a substance that relaxes you, reduces pain or makes you sleep
•a mild narcotic

Word Origin:
late Middle English: from Old French narcotique, via medieval Latin from Greek narkōtikos, from narkoun ‘make numb’.

Example Bank:
•He has been arrested for trading in narcotics.
•Narcotics trafficking represents 30 to 50 per cent of organized crime's take.
•The main reason people abuse illegal narcotics is so they may ‘escape’ from their harsh, cruel reality.
•a narcotics agent

 
adjective
1. (of a drug)that affects your mind in a harmful way
2. (of a substance)making you sleep
•a mild narcotic effect

Word Origin:
late Middle English: from Old French narcotique, via medieval Latin from Greek narkōtikos, from narkoun ‘make numb’.
 

• Từ đồng nghĩa / Synonyms:
  soporiferous, soporific, narcotizing, narcotising