opioid
noun/ˈəʊpiɔɪd/
/ˈəʊpiɔɪd/
- any of a class of drugs that are similar to opium in their effects on the human system. Opioids are used in medicines to treat severe pain but some people take them illegally for pleasure and become addicted.
对人体系统的影响类似于鸦片的一类药物。阿片类药物被用于治疗严重疼痛的药物中，但有些人为了快乐而非法服用它们并上瘾。 - The study involved patients who had been prescribed opioids for chronic pain.
该研究涉及因慢性疼痛而服用阿片类药物的患者。
Word Origin1950s: from opium + -oid. - The study involved patients who had been prescribed opioids for chronic pain.