Definition of "opioid" []

• See opiate. (noun)
• Opiate. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• ""There is little evidence that long-term opioid use is efficacious in reducing pain, much less in restoring function, the true goal of treatment," Seth Berkowitz and Mitchell Katz, physicians at the Los Angeles County Department of Health Services, wrote in"
• "Veteran patients who receive long-term opioid prescriptions generally are treated with modest and st ..."
• "Smoking, as well as the medicinal use of opioid painkillers such as oxycodone, are independent predictors of longer-term opioid pain medication use among patients with chronic back pain caused by lumbar spine conditions, a new U.S. study finds."