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naltrexone

Pronunciation: /nalˈtrɛksəʊn/
Definition of naltrexone

noun

[mass noun] Medicine
  • a synthetic drug, similar to morphine, which blocks opiate receptors in the nervous system and is used chiefly in the treatment of heroin addiction.

Origin:

1970s: from a contraction of N-al(lylnoroxymorph)one (see naloxone), with the insertion of the arbitrary element -trex-

naltrexone in other Oxford dictionaries

Definition of naltrexone in the US English dictionary

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