Definition of naltrexone in English:

naltrexone

Line breaks: nal|trex|one
Pronunciation: /nalˈtrɛksəʊn
 
/

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.
More example sentences
  • In addition, this research group also determined that naloxone, an opiate antagonist similar to naltrexone, prevented the action of both marijuana and heroin on dopamine transmission.
  • Thus, the researchers proposed the hypothesis that alcohol releases endogenous opioids and that naltrexone blocks the opioid receptor.
  • Small studies have suggested that the opiate antagonist naltrexone is effective as an adjuvant therapy for treating alcohol addiction.

Origin

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

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Pronunciation: ˈflɪp(ə)nt
adjective
not showing a serious or respectful attitude