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Other

opioid

Pronunciation: /ˈəʊpɪɔɪd/

Biochemistry
Definition of opioid

noun

  • a compound resembling opium in addictive properties or physiological effects: opioids other than heroin

adjective

  • relating to or denoting opioids: opioid use

Origin:

1950s: from opium + -oid

opioid in other Oxford dictionaries

Definition of opioid in the US English dictionary