opioid - WordReference.com Dictionary of English

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  - ophthalmoscope
  - opiate
  - opine
  - opinion
  - opinion poll
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opioid

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Concise Oxford English Dictionary © 2008 Oxford University Press:
opioid /ˈəʊpɪɔɪd/ Biochemistry

▶noun a compound resembling opium in addictive properties or physiological effects. ▶adjective relating to or denoting opioids.

'opioid' also found in these Oxford entries:

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