Definition of cannabis noun from the Oxford Advanced American Dictionary

 

cannabis

 noun
noun
NAmE//ˈkænəbəs//
 
[uncountable]
 
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a drug made from the dried leaves and flowers, or resin of the hemp plant, which is smoked or eaten and which gives the user a feeling of being relaxed. Use of the drug is illegal in many countries. synonym marijuana
See the Oxford Advanced Learner's Dictionary entry: cannabis