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

 

morphine

 noun
noun
BrE BrE//ˈmɔːfiːn//
 
; NAmE NAmE//ˈmɔːrfiːn//
 
(old-fashioned morphia
BrE BrE//ˈmɔːf//
 
; NAmE NAmE//ˈmɔːrf//
 
)
[uncountable]
 
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a powerful drug that is made from opium and used to reduce pain Cancer patients are often prescribed increasing doses of morphine. Word Origin early 19th cent.: from German Morphin, from the name of the Roman god Morpheus. Morpheus is the god of dreams, and in later writings, also the god of sleep.
See the Oxford Advanced American Dictionary entry: morphine