Dictionary
1opioid
adjective opi·oid \ˈō-pē-ˌȯid\
Definition of OPIOID
1
: possessing some properties characteristic of opiate narcotics but not derived from opium
2
: of, involving, or induced by an opioid
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First Known Use of OPIOID
1967
Rhymes with OPIOID
adenoid, alkaloid, amoeboid, aneroid, anthropoid, arachnoid, asteroid, Australoid, carcinoid, Caucasoid, celluloid, crystalloid, echinoid, ellipsoid, embryoid, eunuchoid, flavonoid, helicoid, hemorrhoid, hominoid, humanoid, hysteroid, metalloid, Mongoloid, myeloid, nautiloid, nucleoid, null and void, obovoid, osteoid, overjoyed, paranoid, planetoid, Polaroid, retinoid, rheumatoid, solenoid, Stalinoid, trapezoid, unalloyed, unemployed
2opioid
noun
Definition of OPIOID
1
: any of a group of endogenous neural polypeptides (as an endorphin or enkephalin) that bind especially to opiate receptors and mimic some of the pharmacological properties of opiates —called also opioid peptide
2
: a synthetic drug possessing narcotic properties similar to opiates but not derived from opium; broadly : opiate 1a
First Known Use of OPIOID
1967
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