出典:Wiktionary
出典:『Wiktionary』 (2025/09/29 11:58 UTC 版)
Attested 1963; from opium + -oid, to distinguish from opiate.
出典:Wikipedia
出典:『Wikipedia』 (2011/06/18 01:28 UTC 版)
An opioid is a chemical that works by binding to opioid receptors, which are found principally in the central and peripheral nervous system and the gastrointestinal tract. The receptors in these organ systems mediate both the beneficial effects and the side effects of opioids.
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a synthetic drug called opioid
a narcotic
a chemical, called {ethionamide}
麻酔薬.