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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Opiáceo

Opiate (OH-pee-ut)
A substance used to treat pain or cause sleep. Opiates are made from opium or have opium in them. Opiates bind to opioid receptors in the central nervous system. Examples of opiates are codeine, heroin, and morphine. An opiate is a type of analgesic agent.



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.