Definition of opioid in English:


Line breaks: opi¦oid
Pronunciation: /ˈəʊpɪɔɪd


  • A compound resembling opium in addictive properties or physiological effects: opioids other than heroin
    More example sentences
    • Some of the most addictive pain medications are opioids, a family of drugs that have effects similar to those of opium or morphine.
    • Some opioids are natural compounds derived from opium, others are synthetic medications that work in a similar way.
    • Historical evidence suggests that law enforcement has been useful in the control of alcohol, tobacco, amphetamine, and opioids.


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  • Relating to or denoting opioids: opioid use
    More example sentences
    • For example, the propensity of opioid abusers entering opioid agonist treatment to discount their cocaine use has been previously documented.
    • The medications most often implicated in prescription drug abuse are opioid analgesics, sedative-hypnotics and stimulants.
    • Fentanyl, morphine, and hydromorphone are opioid analgesic medications that may be used for moderate sedation/analgesia.


1950s: from opium + -oid.

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