オピオイドおぴおいどFreq.FrequencyTop 50,000じ字FuriganaMeanings1nounopioidMedical and pharmacological term for substances that act on opioid receptors, including both natural and synthetic compounds.医い師しは術じゅつ後ごの痛いたみに対たいしてオピオイドを処しょ方ほうした。