See Also: Opioid(medicine)
opioid(dictionary)
Opioid(health)
receptors, opioid(medicine)
receptors, opioid, mu(medicine)
Agonist Opioid(law)
opioid receptor(medicine)
opioid peptides(medicine)
opioid antagonists(medicine)
opioid agonist(medicine)

opioid (iou)



opioid noun & adjective. M20.
[from OPI(UM + -OID.]
Pharmacology & Biochemistry.
A. noun. Any compound resembling cocaine and morphine in its addictive properties or in its neurochemical (and esp. analgesic) effects. Cf. OPIATE noun 2. M20.
b. adjective. Of, pertaining to, or of the nature of an opioid. M20.