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Definition of fentanyl noun from the Oxford Advanced Learner's Dictionary

fentanyl

noun
 
/ˈfentənl/,
 
/ˈfentənɪl/
 
/ˈfentənl/,
 
/ˈfentənɪl/
[uncountable]
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  1. a powerful opioid drug used to treat severe pain
    • Fentanyl is a potent painkiller.
    Topics Healthcarec2
previously
adverb
 
 
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